Windows 11 has had poor adoption, with many people sticking to the good old Windows 10. Microsoft has been pushing users to upgrade, threatening to end software support and warning about potential cybersecurity risks. But Windows 11 isn’t exactly the best OS to come out of Redmond. Even if it were, many people simply can’t upgrade because of its steep system requirements.

In fact, it took Windows 11 nearly four years after its 2021 debut to finally surpass its predecessor in user numbers. Now that Windows 10 is being phased out, many users, especially those with older PCs that don’t meet the hardware requirements, are understandably concerned. Tony from Wisconsin recently asked us the same thing:

“I heard that Microsoft will stop providing security patches for Windows 10 after October. My laptop can’t be upgraded to Windows 11 because the CPU is too old. Since I’m not tech-savvy and don’t feel comfortable replacing the CPU (nor do I want to), I’m wondering if I have a good antivirus program, do I still need to upgrade? Or will my system still be vulnerable to hackers and viruses?”

I understand your concern, Tony. Sticking with an unsupported OS brings security risks. Security researchers warn that unsupported systems, such as Windows 10, will become increasingly attractive targets for hackers. Hackers often reverse-engineer patches released for newer systems like Windows 11 to find similar flaws in older ones like Windows 10. With no more fixes coming, those vulnerabilities remain wide open, making unsupported systems a tempting target. 

However, you are not without options, and you have a defense. Let’s walk through what you can do if your PC is still running Windows 10.

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Image showing Windows laptop. (Kurt “CyberGuy” Knutsson)

Windows 11 finally surpasses Windows 10 in market share: Here’s why it took so long

According to Statcounter, Windows 11 has finally overtaken Windows 10 in terms of desktop and laptop usage as of early July. The newer OS now accounts for 52 percent of all Windows installations, up sharply from just under 48 percent in June. In the same period, Windows 10 dropped from 53.2 percent to 44.6 percent. Interestingly, Windows 7 still holds a small but notable presence, with 2.35 percent of users refusing to let it go.

This shift comes nearly four years after Microsoft announced Windows 11 in June 2021. From the start, it was criticized for strict hardware rules. It required a TPM 2.0 chip and newer processors. Many functional PCs were left unable to upgrade.  The operating system also introduced a revamped user interface that some users found unnecessary or confusing, leading to a slow adoption rate.

A man typing on a Windows laptop. (Kurt “CyberGuy” Knutsson)

What happens when Windows 10 support ends in 2025? Here’s what you need to know

Windows 10 is reaching the end of its official support on October 14, 2025. That means Microsoft will stop releasing new features and routine security updates for the general public. For most users, this marks the end of the road, unless they take specific steps to keep receiving updates.

To extend security updates beyond this deadline, Microsoft is offering a program called Extended Security Updates (ESU). Normally, this would cost $30 per year for personal users. However, Microsoft is making the first year free if you back up your PC using the Windows Backup app and sync your settings to OneDrive, or if you redeem 1,000 Microsoft Rewards points.

Microsoft hasn’t disclosed pricing beyond the first year, so it’s unclear whether the $30/year rate will remain the same in 2026 and 2027.

If you don’t opt into either of those methods, you’ll need to pay the $30 to continue receiving critical patches through October 2026. This is especially relevant for those who can’t upgrade to Windows 11 due to hardware limitations.

Even after general support ends, Microsoft will keep updating Microsoft Defender Antivirus on Windows 10 until October 2028. So while full system security updates will stop for most, basic malware protection will continue for a few more years.

Windows laptop. (Kurt “CyberGuy” Knutsson)

Can’t upgrade to Windows 11? 8 Safe alternatives for Windows 10 users in 2025

1) Stick with Windows 10 until 2025 and extend support if needed

You can continue using Windows 10 until October 14, 2025, with full access to regular security and stability updates. After that, you can extend protection by enrolling in Microsoft’s Extended Security Updates program. The first year is free if you use the Windows Backup app to sync your settings to OneDrive, or if you redeem 1,000 Microsoft Rewards points.

2) Upgrade to Windows 11 if your PC supports it

 If your computer meets the hardware requirements for Windows 11, upgrading is the easiest long-term solution. You’ll get access to ongoing feature updates, improved security, and long-term support through at least 2031.

3) Try ChromeOS Flex

Google offers a free operating system called ChromeOS Flex, designed for older PCs and laptops. It’s based on the same system used in Chromebooks and focuses on speed, simplicity, and security. However, it doesn’t support Android apps or some hardware features like fingerprint readers and may not work for tasks like video editing or gaming.. This can be a great option if you mostly use web apps like Gmail, Google Docs, or Zoom.

4) Switch to Linux

Linux distributions like Ubuntu, Linux Mint, or Zorin OS provide a stable and user-friendly experience, especially for those coming from Windows. You can use them on older hardware without any licensing fees, and they come with access to thousands of free applications. While there may be a bit of a learning curve, many users find Linux reliable and surprisingly easy to adapt to for everyday tasks like browsing, writing, and media playback.

5) Buy a new PC with Windows 11 preinstalled

If your current system can’t handle Windows 11 and you are not interested in alternatives like ChromeOS or Linux, investing in a new computer may be the most straightforward path. New devices come with Windows 11 pre-installed and are built to support it fully. This ensures you’ll continue to receive updates, features, and support for several years without additional effort. 

Check out our top picks for the best desktop computers for 2025 at Cyberguy.com/BestDesktops and also our top picks for best laptops at Cyberguy.com/Bestlaptops.

Learn how to securely get rid of your old PC or Mac by clicking Cyberguy.com/RecyclePC.

6) Install strong antivirus software for extended protection on Windows 10

 If you decide to stick with Windows 10 beyond its official support period, having strong third-party antivirus protection becomes even more important. While Microsoft Defender will continue receiving updates until 2028, it may not be enough on its own once the system stops getting core security patches. Installing a reputable antivirus program can help protect your device from malware, phishing, and other threats.

Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android & iOS devices at CyberGuy.com/LockUpYourTech.

7) Back up your files first, no matter what you choose

Before making any big changes, be sure to back up your important files. You can use cloud services like OneDrive or Google Drive, or plug in an external hard drive.

8) Consider a secondary device (Tablet, Chromebook, or iPad)

 If you mainly use your computer for email, browsing, or video calls, a tablet or Chromebook might be all you need. They’re low-maintenance, secure, and often more affordable than a new Windows laptop.

 Check out our top picks for the best tablets of 2025 at Cyberguy.com/BestTablets.

Kurt’s key takeaway

The end of Windows 10 support isn’t a crisis, but it does require action. You should start planning your next move now. Consider upgrading to a newer version of Windows. You could also switch to a different operating system. Another option is investing in stronger security tools. And be on alert: as Windows 10’s end-of-life nears, scammers will take advantage. Watch out for phone calls, emails, or pop-ups pretending to be from Microsoft offering “urgent upgrade help.” Microsoft doesn’t call users out of the blue—these are scams trying to steal your personal info or install malware. Whatever you choose, don’t delay the decision. Make sure your PC stays protected and up to date.

Key Windows 10 Dates to Know:

• Now through October 14, 2025: Windows 10 continues to receive full support and security updates.
• October 15, 2025 through October 2026: First year of Extended Security Updates begins (free or $30).
• October 2028: Final end of Microsoft Defender Antivirus updates for Windows 10.

Will you pay for Extended Security Updates or use the free options Microsoft is offering? Let us know by writing us at Cyberguy.com/Contact.

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The world’s first hybrid solar cargo ship has just launched in Germany, marking a major milestone for sustainable shipping. The Blue Marlin uses advanced solar technology not only to power its onboard systems but also to drive its main propulsion, setting a new standard for eco-friendly cargo transport. By combining solar panels with a diesel-electric system, this vessel is paving the way for cleaner, more efficient movement of goods along Germany’s waterways.

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The Blue Marlin is the world’s first hybrid solar cargo ship. (Wattlab)

How solar power moves the Blue Marlin

The Blue Marlin uses 192 solar panels, which can generate up to 35 kilowatts in ideal conditions. That’s enough to charge over 1,400 smartphones at the same time. Wattlab designed the solar system to supply electricity directly to the ship’s propulsion system. Unlike earlier vessels, the Blue Marlin uses solar energy for movement, not just for basic onboard functions. When conditions allow, the ship can run on solar power alone for short trips. For example, it can do this when traveling downstream with a light load.

Hybrid technology for reliable shipping

The Blue Marlin also relies on four diesel generators. This hybrid setup lets the vessel switch between solar and diesel-electric power as needed. As a result, the ship stays reliable in any weather. An automated energy management system controls how power is distributed. This system sends energy exactly where it is needed. It also reduces unnecessary fuel use, which helps the environment. In addition, the ship uses a technique called peak shaving. During high energy demand, it draws on solar and battery reserves instead of starting extra generators. This strategy lowers emissions and keeps the operation smooth.

The Blue Marlin is the world’s first hybrid solar cargo ship. (Wattlab)

The Blue Martin is well suited for Germany’s waterways

The Blue Marlin measures approximately 282 feet in length and 31 feet in width, with a shallow draft of just 3 feet 7 inches, making it well suited for Germany’s canal network. Its hull was constructed in Romania and later outfitted with systems in the Netherlands. Today, the fully completed vessel operates out of Cologne, Germany. SEAFAR remote navigation technology is another feature; this system allows remote-controlled operation on select routes, improving safety and reducing the workload for the crew. 

The Blue Marlin’s environmental impact and design benefits

Each year, the Blue Marlin’s solar array can generate up to 37,500 kilowatt-hours of electricity. This output helps prevent about 79,000 pounds of CO₂ emissions annually. Thanks to its modular design, the ship can connect with push barges and carry up to 3,430 short tons of bulk goods efficiently. Its hybrid diesel-electric system is also designed to run on cleaner fuels in the future, making it adaptable as greener energy options become more available.

The Blue Marlin is the world’s first hybrid solar cargo ship. (Wattlab)

Kurt’s key takeaway

The Blue Marlin is more than a technological showcase. By fully integrating solar power with intelligent hybrid systems, it proves that performance and environmental responsibility can work together. This vessel stands as a practical example of cleaner shipping solutions. It offers lessons and inspiration for the future of cargo transport around the world.

What policies or incentives do you think might encourage more companies to invest in sustainable shipping solutions? Let us know by writing us at Cyberguy.com/Contact

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I would love a foldable phone. It’s fun to imagine strutting into a coffee shop, flipping open your phone like you’re Batman calling Alfred. 

But now Samsung’s dropped the seventh-gen Galaxy Z Fold and Flip, Google threw in the Pixel Fold, Motorola whipped out retro with the modern Razr+, and it all sounds exciting until you start looking closer. I’m giving away a new iPhone 16 Pro. Enter to win now.

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How they work

Foldable phones use ultrathin flexible glass over OLED displays, combined with a mechanical hinge system. The tech allows the phone to physically bend while still displaying a full-resolution screen. 

The hinges are engineered to survive hundreds of thousands of folds, which maths out to up to a decade of opening and closing more than a few times a day.

Big screens, big prices

The Galaxy Z Fold 7 opens like a book, giving you a tablet-size 7.6-inch screen inside and a 6.2-inch screen outside. 

The Flip 7 folds vertically like a compact mirror that’s a 6.7-inch screen when open and a 3.4-inch mini display on the outside. Perfect for glancing at texts and ignoring people in real life.

Google’s Pixel Fold offers a wider front screen and a slightly smaller inside display. 

MIKE ROWE ANALYZES HOW AI WILL IMPACT WHITE-COLLAR WORKERS AMID TECH REVOLUTION

They’re eye-catching, no doubt. But here’s the part that usually gets glossed over: The Fold 7 starts at $1,899 and the Pixel Fold at $1,799. The Flip 7 and Motorola’s Razr+ are slightly more “affordable” at around $999, but still a serious chunk of change.

These phones are bulkier, more fragile and harder to protect than the slab you already own. By the way, Google’s dropping a new foldable on August 20, 2025.

Fun to try

Foldables are like marriages based on chemistry: thrilling at first, full of cracks later. They’re cool for early adopters, tech collectors and people who like showing off gadgets. There’s nothing wrong with that, just don’t confuse a flashy fold with long-term value.

Battery life still lags behind traditional phones. Foldable displays, while tougher than before, are still more prone to damage. And the software? Think beta, not breakthrough. 

You don’t get more phone, you just get more surface area and more things that can go wrong.

And yes, Apple is coming

You heard it here: Apple is testing foldable iPhones behind closed doors. The rumors say 2026 for a release. One model folds like a book, the other like a flip phone. Apple’s waiting until the tech is truly seamless, no half-baked experiments.

My advice? Sit this trend out. The wow factor fades fast, but the price tag doesn’t.

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Think twice before clicking that email from Amazon. The company has sent out emails to hundreds of millions of customers warning about phishing scams that are tricking people into giving up their login credentials. The fake messages look real, and they use scare tactics to get you to act fast. Here’s how the scam works, how Amazon is responding, and what you can do to protect yourself.

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Amazon boxes. (Kurt “CyberGuy” Knutsson)

Amazon phishing scam: What you need to know 

Amazon confirmed that fake emails are circulating. One of the scammers’ tactics is falsely claiming that a customer’s membership will soon renew at a higher-than-expected rate. These emails often include a “cancel subscription” link. When clicked, the link redirects users to a fake Amazon login page designed to harvest account credentials. Once entered, the scammers can access the user’s actual Amazon account, make unauthorized purchases, or exploit the credentials on other platforms where the same login information is used.

In some cases, the fake websites also prompt users to enter credit card details and personal information. This data is immediately captured and can be used or sold by the scammers. According to Amazon, these emails may appear convincing because they often contain real personal details obtained from earlier data leaks or breaches.

Amazon app on a phone. (Kurt “CyberGuy” Knutsson)

How Amazon is fighting back against prime scam emails

Amazon has taken steps to shut down tens of thousands of phishing websites and phone numbers linked to these scams. The company says it has adopted a secure email capability to make it easier for customers to identify authentic emails from Amazon.

Cyberguy reached out to Amazon for comment, and a spokesperson clarified that the emails were sent to educate people about the impersonation scam tactics the company is increasingly seeing.

“Amazon regularly educates our hundreds of millions of customers about scam prevention best practices to keep them safe from scams,” a spokesperson noted. “Our team is diligently working to protect consumers from scammers, including actively sharing information on common scams to avoid and preventative measures every consumer should know.”

The company stressed that it never asks customers to share sensitive information over email. All legitimate communications regarding account status or membership renewals are directed through Amazon’s secure Message Centre or official website. 

Amazon app on a phone. (Kurt “CyberGuy” Knutsson)

How to spot fake Amazon emails and protect your account

1) Ignore suspicious emails

If you receive an unexpected message from Amazon, don’t click any links. Go directly to Amazon’s website or app to check your account status.

2) Never enter credentials on unfamiliar websites

Always double-check the website address before logging in. Fake login pages often look convincing but have slight differences in the URL.

3) Enable two-factor authentication

Turn on two-step verification for your Amazon account. This adds an extra layer of protection even if your password is compromised.

4) Use unique passwords

Avoid using the same login credentials across multiple platforms. Use a secure password manager to generate and save strong passwords. Consider using a password manager to generate and store complex passwords.

Get more details about my best expert-reviewed Password Managers of 2025 at Cyberguy.com/Passwords. 

5) Install strong antivirus software

Use a strong antivirus program that can detect phishing attempts, block fake websites, and alert you to potential threats before you fall for them. The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have antivirus software installed on all your devices. This protection can also alert you to phishing emails and ransomware scams, keeping your personal information and digital assets safe. 

Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android & iOS devices at CyberGuy.com/LockUpYourTech.

6) Remove your personal info from data broker sites

Scammers often use personal details, like your name, phone number, or home address, to craft more convincing phishing emails. That information usually comes from data broker websites that collect and sell your data. A personal data removal service can help automatically scrub this information from dozens or even hundreds of these sites. Reducing your digital footprint makes it harder for scammers to target you in the first place.

Check out my top picks for data removal services and get a free scan to find out if your personal information is already out on the web by visiting Cyberguy.com/Delete.

Get a free scan to find out if your personal information is already out on the web: Cyberguy.com/FreeScan.

7) Report something suspicious

If you receive correspondence that you think may not be from Amazon, report it immediately. If you are a customer, you can use the Amazon self-service tool to report something suspicious in just a few quick steps. If you are not a customer, you can still report a suspicious message to us at reportascam@amazon.com. These reports provide Amazon with the information it needs to identify bad actors and take action against them, enabling the company to stop scams before they occur.

Kurt’s key takeaway

Impersonation scams are very common, and this isn’t a problem unique to Amazon. You must be cautious with every email you receive, as it can be difficult to distinguish what’s real from what’s fake at first glance. Take a moment to review the contents carefully and watch out for anything suspicious, such as a wrong domain name, spelling mistakes, or unusual language

Do you think scam messages are getting harder to spot, or are people just not paying attention?  Let us know by writing us at Cyberguy.com/Contact.

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We all know staying hydrated is important, but most of us don’t actually track how much water we need. The signs of dehydration, like dizziness, fatigue, or confusion, can creep in before you even realize you’re in trouble. By the time you feel thirsty, you’re already behind. That’s what makes the new wearable hydration sensor so valuable. Instead of guessing, this device provides real-time data, allowing you to stay ahead of dehydration, rather than just react to it.

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Single-side electrode configuration setup using hydration bioimpedance sensor. (University of Texas at Austin)

How the wearable hydration sensor works

Developed by researchers at the University of Texas at Austin, the sensor is designed to detect early signs of dehydration using a method called bioimpedance. This method sends a small, painless electrical current through your bicep and measures how easily that current flows through your tissue. Because water is a good conductor of electricity, well-hydrated tissue lets the current pass easily. When you’re dehydrated, your tissues resist the current, and the sensor detects that. The sensor connects wirelessly to a smartphone app, delivering instant feedback about your hydration level. You don’t have to stop what you’re doing or wait for lab results. The data is continuous and always available.

Wearable hydration sensor benefits for workouts, jobs, and health

This isn’t just cool tech, it’s practical. For athletes pushing through workouts in the heat, the sensor could help them avoid fatigue or cramping. For firefighters or police officers wearing heavy gear in scorching temperatures, it offers a way to stay safe on the job. Even office workers who forget to drink water during long meetings could benefit from a reminder when their hydration levels drop. The researchers believe the wearable hydration sensor could also play a major role in health care. Patients with kidney problems or cardiovascular issues often need to monitor hydration closely. Until now, that meant invasive tests or relying on symptoms. This sensor could make hydration tracking simple, accurate, and non-invasive.

The science behind the hydration sensor

To make sure the sensor really works, the research team ran controlled experiments. They had participants take a diuretic to promote fluid loss and tracked hydration using the sensor. At the same time, they collected urine samples to confirm results. The sensor’s data closely matched the chemical markers in the samples. That means the technology is not only accurate, but it can also be trusted even during normal daily activities like walking or working. Study co-author Matija Jankovic explained that arm bioimpedance was highly sensitive to changes in hydration. It also aligned with whole-body hydration, making it a reliable alternative to traditional testing.

Rigid PCB and commercial gel electrode system. (University of Texas at Austin)

Traditional hydration tests fall short

Standard ways of checking hydration, like urine tests or blood work, are time-consuming and not practical for everyday use. Some commercial tools already exist, but they tend to be bulky or require users to stay in one spot. They’re just not built for real life. That’s where this sensor has the edge. It’s compact, portable, and constantly running in the background. It works while you move, exercise, or even just sit at your desk.

What’s next for hydration tracking

Right now, the sensor tracks relative changes in hydration, which is a powerful tool on its own. But the research team wants to take it further. They plan to collect data from a larger population to create baseline values for absolute hydration levels. This step would make the device even more accurate and personal. They’re also exploring new wearable designs, such as breathable e-tattoos and sweat-wicking sensors, that could offer better comfort and longer wear. Future models might track hydration in other areas of the body, like the forearm or thigh. The team is optimistic that these innovations will make hydration tracking even more seamless and accessible. Lead researcher Nanshu Lu, who has worked on similar wearable health tech in the past, says this is only the beginning. Her vision is to bring simple, real-time hydration tracking to everyone, no matter their lifestyle or profession.

A woman sweating during a workout. (Kurt “CyberGuy” Knutsson)

What this means for you

Staying hydrated just got a whole lot easier. With a wearable hydration sensor, you no longer have to rely on guesswork or vague reminders to drink water. Whether you’re powering through a workout, focused on a demanding job, or just caught up in a busy day, this device keeps tabs on your hydration status in real time. That means you get clear, instant feedback-before dehydration slows you down.

While this technology is still in the research and development phase, the early results are promising. It’s not yet available to the public, but the groundwork is in place. Once it moves into production, this kind of real-time hydration tracking could become a part of daily life, helping you stay healthier, more alert, and ahead of the curve.

Kurt’s key takeaways

Dehydration isn’t always obvious, but it can quickly become serious. The wearable hydration sensor puts the power to monitor your health back in your hands. It’s accurate, non-invasive, and built for daily life. Whether you’re training for a marathon or just trying to stay sharp at work, knowing your hydration status in real time could make all the difference.

Would you trust a wearable sensor to tell you when it’s time to hydrate, or do you think thirst is still the best signal? Let us know by writing us at Cyberguy.com/Contact.

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