How to fix iaStorAC.sys BSOD in Windows?

Question

Issue: How to fix iaStorAC.sys BSOD in Windows?

Hello. I encountered an iaStorAC.sys Blue Screen of Death error on my Windows 10 computer. The PC is relatively new, how can it be fixed?

Solved Answer

Witnessing a BSOD (Blue Screen of Death)[1] error can be very intimidating. It appears seemingly out of nowhere and interrupts users' work. Unfortunately, if they have not saved the progress, it is most likely gone. Another reason why it is so scary is that it is often caused by problems with the computer’s hardware or issues with its driver software. Although many will not want to hear it, there is a big chance you might have to replace some parts.

A particular error that users have been experiencing lately is the iaStorAC.sys BSOD. It can be caused by many things, including RAM[2] failure but let's not jump to conclusions. There are many “Stop Errors” that can come with that screen, and some of them are:

  • SYSTEM_THREAD_EXCEPTION_NOT_HANDLED
  • IRQL_NOT_LESS_OR_EQUAL
  • ATTEMPTED_WRITEN_TO_READONLY_MEMORY
  • SYSTEM_SERVICE_EXCEPTION
  • KMODE_EXCEPTION_NOT_HANDLED

As you can imagine, thousands of components running in the background are responsible for keeping the system working smoothly, so you should not start to worry about buying and replacing parts of your PC without completing our troubleshooting guide first. Simple steps like a system file scan could be able to fix the issue for you.

However, the troubleshooting process could take a while, so you can use a repair tool like ReimageMac Washing Machine X9 that can fix various system errors (including BSODs), corrupted files, and registry[3] issues. Otherwise, you can start with the steps below if you want to try to fix iaStorAC.sys BSOD in Windows yourself.

How to fix iaStorAC.sys BSOD in Windows?

Solution 1. Fix Corrupted System Files

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

Use Command Prompt commands to repair system file corruption:

  • Open Command Prompt as administrator
  • Use the following command and press Enter:
    sfc /scannow

Fix Corrupted System Files

  • Reboot your system
  • If SFC returned an error, then use the following command lines, pressing Enter after each:
    DISM /Online /Cleanup-Image /CheckHealth
    DISM /Online /Cleanup-Image /ScanHealth
    DISM /Online /Cleanup-Image /RestoreHealth

Solution 2. Run Windows Memory Diagnostic Tool

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

Windows has a built-in RAM testing tool. It’s included on Windows 10, Windows 11, Windows 7, and all other modern versions of Windows.

  • Open the Start menu, type Windows Memory Diagnostic, and press Enter
  • Click Restart now and check for problems (recommended)
  • Your computer will now restart

Run Windows Memory Diagnostic Tool

  • The test may take several minutes. You will see a progress bar and a Status message will inform you if any problems have been detected during the process

Solution 3. Disable Fast Startup

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Search for Control Panel in the Windows search bar
  • Click Power Options
  • On the left-hand menu, select Choose what the power buttons do
  • If prompted, select the Change settings that are currently available

Disable Fast Startup

  • Untick the box that says Turn on Fast Startup
  • Click Save changes

Solution 4. Delete Windows.old folder

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Press Windows key + R to open the Run box
  • Type cmd and simultaneously hit Ctrl+Shift and Enter keys
  • Execute the following commands by pressing Enter after each one:

attrib -r -a -s -h C:Windows.old /S /D

RD /S /Q %SystemDrive%windows.old

Delete Windows.old folder

  • Restart your system

Solution 5. Reinstall IRST Drivers

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Press Windows key + R to open the Run box
  • Type devmgmt.msc and press Enter.
  • Double-click on IDE ATA/ATAPI, then right-click on every item below and click Uninstall device

Reinstall IRST Drivers

  • Restart your computer, drivers will be downloaded automatically upon reboot

Solution 6. Use System Restore Point

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

System Restore can roll back the system back to a previous point when the error was not present. Use this utility and choose a restore point before the error started appearing.

  • Search for Control Panel in your taskbar
  • Change the view mode to Large icons
  • Click on Recovery, then Open System Restore

Use System Restore Point

  • If prompted, enter your user password
  • Follow the on-screen instructions and wait for the wizard to complete the restoration
  • Restart your computer

Solution 7. Clean Install Windows

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

Performing a clean install wipes out data from the PC, so please create backups before you proceed.

  • Download the ISO file
  • Select Create installation media for another PC and click Next
  • Select ISO file and click Next

Clean Install Windows

  • Click Finish
  • Open the Windows ISO file you downloaded
  • Open Setup and click Next
  • Click Accept (Be prepared to wait; this next part may take a while)
  • Click Install
  • Wait for your system to restart and install Windows

Repair your Errors automatically

ugetfix.com team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:

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Still having problems?
If you failed to fix your error using Reimage, reach our support team for help. Please, let us know all details that you think we should know about your problem.
Reimage - a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats.Reimage - a patented specialized Mac OS X repair program. It will diagnose your damaged computer. It will scan all System Files and Registry Keys that have been damaged by security threats.
This patented repair process uses a database of 25 million components that can replace any damaged or missing file on user's computer.
To repair damaged system, you have to purchase the licensed version of Reimage malware removal tool.

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About the author
Gabriel E. Hall
Gabriel E. Hall - Passionate computer expert

Gabriel E. Hall is an expert troubleshooter who has been working in the information technology industry for years.

Contact Gabriel E. Hall
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