How do I fix ACPI BIOS error

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Symptoms of ACPI_BIOS_ERROR blue screen error

  • "ACPI_BIOS_ERROR" appears and the active program window crashes.
  • "STOP Error 0xA5: ACPI_BIOS_ERROR" "is displayed.
  • A problem has been encountered. Windows has been shut down to prevent damage to the computer. The following file is believed to be causing the problem.
  • Your PC frequently crashes with Error 0xA5 when running the same program
  • "ACPI_BIOS_ERROR bug check has a value of 0x000000A5 This bug check indicates that the Advanced Configuration and Power Interface (ACPI) BIOS of the computer is not fully compliant with the ACPI specification." is displayed.
  • Windows runs slowly and has a delay in responding to the mouse or keyboard.
  • Your computer regularly hangs up for a few seconds.

In most cases, you will see ACPI_BIOS_ERROR blue screen errors after installing new hardware or software. These ACPI_BIOS_ERROR -Blue Screens can appear during a program installation, while ACPI_BIOS_ERROR-related software is running or drivers are being loaded. This error can also appear during Windows startup or shutdown. If you want to fix this error, it is important to track this STOP error.

Causes of ACPI_BIOS_ERROR blue screen errors

  • Incorrectly configured, old or defective device drivers
  • Windows registry corruption from recent Windows related software change.
  • An infection with a virus or other malware that has damaged Windows system files.
  • Driver conflict after installing new hardware
  • Corrupted or removed system files after software is installed or uninstalled.
  • Error Error 0xA5Blue Screen caused by a damaged hard drive. Check your hard disk with Checkdisk (chkddsk / f / r) or another tool to check your hard disk
  • ACPI_BIOS_ERRORSTOP error can also appear when the system memory is corrupted. Test your system memory using Windows’s internal memory verification tool. To do this, call up 'memory diagnosis' in the Weindows search and then follow the further instructions.

ACPI_BIOS_ERROR blue screen errors can be caused by a variety of hardware, software, driver, or BIOS problems.

How to fix ACPI_BIOS_ERROR blue screen (0x000000A5)

Step 1: Repair registry entries related to error 0xA5

You can try to edit or remove invalid registry keys associated with ACPI_BIOS_ERROR. However, this should be done with caution, otherwise you run the risk of bringing the system to a permanent standstill. Make sure that your entries are correct and valid. It is always advisable to back up the registry before editing so that it can be restored if necessary.

You can access the registry editor by right-clicking on Start-> Run and enter "regedit" in the input field. Confirm your entry with the Enter key. In the editor you can now search for Rigitry keys that can trigger ACPI_BIOS_ERROR.

Step 2: Check your PC completely for malware

There is a possibility that the ACPI_BIOS_ERROR is related to the fact that your PC is infected with a malicious program. Make sure that you have installed an up-to-date virus scanner on your PC and that it is doing its job properly. With the new Windows Defender, however, you should have a reliable virus scanner in the system. You can certainly switch to other manufacturers.

Step 3:Install and update drivers for the devices

In many cases it is possible that you have installed an outdated or defective driver that can trigger the ACPI_BIOS_ERROR error. Again, it is relatively difficult to locate this defective driver. Try to find out which driver you installed last, and then roll back the installation. You can also have the device manager update a defective or outdated driver.

Step 4: Try System Restore to undo the latest system changes

If the ACPI_BIOS_ERROR error occurs after a software installation, you can try to uninstall the program again, on the one hand, and you can also use Windows system recovery to restore the system to an earlier state.

  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows 10