I recently received notifications from my antivirus about a potential threat called "WinRing0x64.sys". After researching, I learned it's part of hardware performance testing tools. This file seems to be linked to an app called "Crystal Disk Info" that I had installed a month ago. Even after uninstalling the app, the file keeps coming back in my system32 folder, which confuses me. Could this be a sign of malware, or is there another reason it's reappearing? Should I consider a clean install of Windows 11? Any advice would be greatly appreciated!
3 Answers
It seems like Microsoft flags the WinRing0x64.sys file as dangerous, even though it's used by legit software. If you're certain the app is gone, you might want to exclude the file from the antivirus checks instead of deletion, as it's used by many programs but can be a risk if malware exploits it.
From what I’ve gathered, WinRing0x64.sys itself isn’t malware; it's a driver for monitoring apps. The reason you're seeing it return is likely because some leftover components of the app are still active. Check for any background processes or services from "Crystal Disk Info". Before reinstalling Windows, I suggest doing a thorough scan with your antivirus to check for any other issues.
It's worth noting that this driver is known to be vulnerable, so if you don’t need it, it’s better to get rid of it. You can either remove it and any app that relies on it or keep it while excluding it from warnings. Just make sure you don't have any other malware lurking around; a full antivirus scan could help clarify things.
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