‘Windows 10 Free Update’ virus. How to remove? (Uninstall guide)

removal by Julie Splinters - -   Also known as CTB Locker virus | Type: Ransomware
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What is ‘Windows 10 Free Update’?

‘Windows 10 Free Update’ (can also be found as ‘Upgrade to Windows 10 for free’) is a fake message that can appear in your inbox. Its sender is usually presented as update@microsoft(dot)com but it may vary. It also contains the attachment with a supposed Windows 10 update. The message looks really professional and reliable since it is full of Microsoft trademarks and engages all stylistic features that are typical to Microsoft. The message carefully describes the advantages and new features that Windows 10 offers, including advanced Start menu, fast resume and startup functions, and so on. Even more, the message is said to be scanned by MailScanner before transferring it to the recipients. Be aware because it’s a real catch. The attachment of the rogue ‘Windows 10 Free Update’ message, which is named as a Win10Installer.zip, in reality, is the installer of CTB-Locker ransomware that will be activated if you double-click on it. Right after that, your personal data stored on your computer, including documents, photos, music, videos, etc. will be encrypted and you will be asked to pay the ransom in order to get them back. Immediately after CTB Locker’s activation a notification on your desktop will show up informing that “You documents, photos, database and other important files have been encrypted with strongest encryption and unique key, generated for this computer.” In order to get the key, you will be urged to pay 3 BTC or about $630 ransom within 96 hours. Otherwise, your personal data will be permanently lost. Therefore, if you want to keep your data safe, first of all start making backups for the most important files and secondly, make sure that you keep a powerful and updated anti-spyware, such as Reimage installed. If you have already hooked up on a fake ‘Windows 10 Free Update’ message and downloaded CTB-Locker virus on your machine, we highly recommend you NOT to pay the ransom because it’s equal to giving away your money and credit card details to scammers. Instead of that, werecommend removing the virus with a reputable anti-spyware and try to get data back with a data recovery tool, for instance, R-Studio or Photorec.

Upgrade to Windows 10 for free

How can ‘Windows 10 Free Update’ hijack my computer?

Although that should be done regularly, Cisco Group recommends people keeping backups of their files especially now since fake ‘Windows 10 Free Update’ email messages embedded with CTB locker ransomware are actively spreading all around the Internet. At the moment, it’s not clear how scammers select their victims; therefore, each e-mail user can be exposed to this catchy message. Keep in mind that the main body of ‘Windows 10 Free Update’ fake message has been copied from Microsoft’s official website; thus making it look credible. Nonetheless, you should be careful when receiving email messages from unknown senders and look carefully for suspicious signals, which are also present in this case. Take a look at the ‘Windows 10 Free Update’ photo below. You can clearly see questionable symbols (Â); nevertheless, not all users pay attention to such details. Moreover, the bogus claim that the message is scanned by MailScanner should be treated as a warning because usually normal email messages do not include such information. Finally, keep in mind that Microsoft is NOT spreading Windows 10 upgrade via emails, so never open attachments with a supposed Windows 10 upgrade. Instead of that, go to the official Microsoft website and get it from there.

How to remove ‘Windows 10 Free Update’ virus?

Actually, you can simply remove fake ‘Windows 10 Free Update’ message by deleting it from your e-mail. Nevertheless, if you opened the attachment that has been included in that email, then you should think of how to remove CTB locker virus and decrypt data that it has encrypted. For that you can use a guide below.

Finally, after such an experience with data encryption, you should start thinking about the immunity of the data stored on your computer. Don’t forget that PC can be easily affected by various exterior factors resulting in data loss. Thus, we highly recommend you to backup files regularly using USB external hard drives, CDs, DVDs or rely on Google Drive, Dropbox, Flickr and other alternative storages.

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall ‘Windows 10 Free Update’ virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.

More information about this program can be found in Reimage review.

More information about this program can be found in Reimage review.
‘Windows 10 Free Update’ virus snapshot
‘Windows 10 Free Update’ virus

Manual ‘Windows 10 Free Update’ virus Removal Guide:

Remove ‘Windows 10 Free Update’ using Safe Mode with Networking

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove ‘Windows 10 Free Update’

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete ‘Windows 10 Free Update’ removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove ‘Windows 10 Free Update’ using System Restore

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of ‘Windows 10 Free Update’. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that ‘Windows 10 Free Update’ removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from ‘Windows 10 Free Update’ and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Julie Splinters
Julie Splinters - Malware removal specialist

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