If you receive an unwanted notification that says something similar to “Validate copy of your Microsoft Windows” when you try to log into a machine running Microsoft Windows your computer is infected with a trojan horse and malicious software. This type of malware is very similar to ransomware because it can restrict access to your computer and make your computer very difficult to use. The fake notification basically holds a Windows computer hostage, just like ransomware, but instead of offering instructions on how to ‘pay a fine’ or remove the restriction as ransomware does, the “Validate copy of your Microsoft Windows” alert wants victims to “contact support.”

Validate copy of your Microsoft Windows


  • The “Validate copy of your Microsoft Windows” window cannot be closed
  • The support phone number leads to an answering machine that says “you called outside of business hours”
  • This infection can affect windows 7, 8, 8.1 and 10
  • This is a fake notification that is not associated with Microsoft


Validate copy of your Microsoft Windows

This copy of Windows did not pass genuine Validation.

You might be a victim of a software counterfeiting.

Before you can install Microsoft Security Essentials, you must have a genuine and properly licensed copy of Windows on this computer.

To acquire a genuine copy of Windows, click "Update Now."

Contact Support US/CA Toll Free 1-800-931-9159

Could not connect to windows activation server, This could be due to a problem with your windows security or corrupt win32 system files.
[Your computer will be shutdown in 10 minutes due to an error. You nay have a Trojan. Call Support at 800-931-9159 for help]


How to remove “Validate copy of your Microsoft Windows”

This guide will help you remove “Validate copy of your Microsoft Windows” malware and fix the “Validate copy of your Microsoft Windows” alert so you can access your PC again.


Uninstall unwanted programs and malware from Windows

1. We recommend that you write down the toll free number below in case you run into any issues while removing this infection. Our techs will kindly assist you with any problems.


2. Open Windows Start/Task Menu (left click bottom right of task bar) and go to the Control Panel.

3. Click Uninstall a program in the “Programs” section.

4. Locate suspicious and unwanted programs in the list of installed programs and uninstall each individually.

Scan your computer and remove malware with Malwarebytes Anti-Malware

1. Download and install Malwarebytes Anti-Malware software.

[button link=”https://store.malwarebytes.org/342/cookie?affiliate=23046&redirectto=http%3a%2f%2fdownloads.malwarebytes.org%2ffile%2fmbam%2f&redirecthash=79CD12ECAB939D32967B5D05C6C86E32″ align=”center” bgcolor=”#ff0000″ hoverbgcolor=”#c71414″ hovertextcolor=”#ffffff” textcolor=”#ffffff” size=”large” style=”flat” fullwidth=”false”]Download “Jabuticaba” removal tool[/button]

2. Launch Malwarebytes Anti-Malware software once it has finished installing.

3. Make sure that Malwarebytes has been updated. To ensure it is updated click Update Now on the Dashboard.

Malwarebytes scan for Jabuticaba

4. Click the large Scan Now button on the dashboard to perform a scan with Malwarebytes Anti-Malware software.

5. When the scan is complete click the Remove Selected button and then click the Finish button or restart your computer if Malwarebytes suggests that you do so.

[note align=”left”]If you are still having issues removing this infection we suggest that use a second opinion scanner such as HitmanPro 3 to locate and remove any computer infection that may be present.[/note]

Refresh, reset, restore, or recover your Windows computer

Depending on your Windows operating system you can restore, reset, refresh, or recover your Windows computer to an earlier date and time.

Reader Interactions


  1. No need to do recovery.
    1) Open task manager
    2) Terminate ‘dv.exe’
    3) Open ‘C:\Program Data’
    4) Delete folder ‘Datafile’
    5) Open command prompt
    6) Type ‘shutdown /a’
    7) Use a tool like CCleaner to remove startup entry for dv.exe (if computer has multiple users, you may have to do this for each one).
    That should do it…

  2. Thanks! did recovery on Windows 10 and now it’s fine. I did not lose any files or programs I wnated to keep either

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