What is acpi.sys?

acpi.sys is a DLL file which is responsible for component ACPI Driver for NT in Windows systems like Windows 7 Professional Edition 64-bit. It was created on 7/13/2009 4:19:35 PM, the size is 334416 bytes and its version is 6.1.7600.16385.

acpi.sys can be infected by virus Virus:VBS/Badab@mm.gen which spreads through social network WAYN to download and install malware Perfect Uninstaller on the affected machines.

Once infected, the file path of acpi.sys will be re-set as:
C:\WINDOWS\System32\DriverStore\FileRepository\acpi.inf_amd64_neutral_2a841284c9de8962\

And the software like PC game XCOM, Web browser Mozilla 1.9.2.4 or antivirus Malwarebytes Anti-Malware Enterprise Edition can't start up, along with error message:
acpi.sys is missing or was not found.

When you restart your computer, you would receive acpi.sys blue screen of death (BSOD), along with stop error code:
0X9799939


How to fix acpi.sys error?

acpi.sys error can be easily fixed by acpi.sys file repair tool DLL Suite:
1. Download, install and run DLL Suite
2. Click Start Scan to check acpi.sys errors
3. Click Fix ALL to repair acpi.sys problem


How to download acpi.sys file for free?

DLL Suite allows its users to download acpi.sys for free by taking the following steps:

1. Download, install and run DLL Suite
2. Click Start Scan to check acpi.sys file
3. Free download acpi.sys from the open web page


DLL Suite



acpi.sys related files:

acpi.sys related files