What is acpi.sys?
Microsoft Windows ACPI driver file.
Is acpi.sys safe?
How do I prevent acpi.sys from loading?
The acpi.sys process is part of Microsoft Windows and should not be deleted or prevented from loading each time Windows loads. Doing so could cause errors or Windows to stop working.
Questions related to acpi.sys
If you've recently been getting errors with acpi.sys it's recommend you unisntall or re-install any programs recently that may have generated this error. If this does not resolve your issue or you have not installed any program recently try recovering Windows back to a earlier copy.
If this does not help try one of the other Computer Hope online help suggestions.
Where can I download acpi.sys?
Because the acpi.sys file is a Windows Operating System file it is not recommend you download this file from any website. If this file is missing, it is likely other Windows related files are also missing, we suggest re-installing Windows to make sure your issue is correctly resolved.
Related dictionary definitions
Still want more information? Click here to open a custom Google search that queries only the top websites containing file and process information. If you're wanting to individually scan this file for a virus, use VirusTotal and upload acpi.sys to have it scanned with dozens of different anti-virus scanners at once.
A big thanks to CBMatt and Evilfantasy for their malware specialist assistance and everyone else in the Computer Hope community who has contributed to the development and testing of this tool. An ongoing discussion about this tool is found here.
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