Hello,
"PaintDesktop" is just a Windows registry setting, usually used for debugging purposes, and it will not cause your computer information to be stolen. When the PaintDesktopVersion value under the HKEY_CURRENT_USER\Control Panel\Desktop path is set to 1, Windows version information is displayed in the lower right corner of the desktop.
Note that if your Windows is not activated, you will not be able to receive important security updates and patches from Microsoft, which could make your computer more vulnerable to viruses and malware. Therefore, we recommend that you purchase and activate Windows from an official Microsoft or authorized retailer to ensure your computer security.
If you are concerned that your computer may have been infected, you can use Windows Defender to perform a full virus scan of your computer.
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