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Home » Windows 8.1 Drivers » How To Fix IaStorAV.sys Blue Screen Errors (BSOD)

05 February, 2019

How To Fix IaStorAV.sys Blue Screen Errors (BSOD)

How To Fix IaStorAV.sys Blue Screen Errors (BSOD)
What Is IaStorAV.sys?
IaStorAV.sys is a type of SYS file associated with Microsoft Windows developed by Microsoft Corporation for the Windows Operating System. The latest known version of IaStorAV.sys is 12.0.1.1018, which was produced for Windows 8.1. This SYS file carries a popularity rating of 1 stars and a security rating of "UNKNOWN".
What Are SYS Files?
SYS files such as iaStorAV.sys are third-party (eg. Microsoft Corporation) device drivers or critical system files that come as part of the Windows operating system. Most SYS files allow internal PC hardware or attached hardware, such as a printer, to communicate with third-party software programs (eg. web browsers, word processors, Microsoft Windows) and the operating system (eg. Windows 8.1).

Other SYS files are critical system files called "kernel mode device drivers" which are used to power the Windows 8.1 operating system. Files such as "CONFIG.SYS" contain configuration settings and specify what device drivers should be loaded by the operating system. Without driver files such as iaStorAV.sys, you wouldn't be able to do simple tasks such as printing a document.
Why Do I Have SYS Errors?
SYS file errors are typically caused by faulty hardware or corrupt device driver files. Because of the importance of IaStorAV.sys in the functionality of Microsoft Windows and other Windows functions, any corruption or damage to this file can create critical system errors in the form of a "blue screen of death" (BSOD). Please see "Causes of IaStorAV.sys Errors" below for more information.
When Do SYS Errors Occur?
SYS errors, such as those associated with iaStorAV.sys, most often occur during computer startup, program startup, or while trying to use a specific function in your program (eg. printing).
Common IaStorAV.sys Error Messages:
  • The majority of iaStorAV.sys errors that you encounter will be "blue screen of death" errors (also know as a "BSOD" or "STOP error") that occur in Windows XP, Vista, 7, 8, and 10:
  • "A problem has been detected and Windows has been shut down to prevent damage to your computer. The problem seems to be caused by the following file: IaStorAV.sys."
  • ":( Your PC ran into a problem and needs to restart. We’re just collecting some info, and then we’ll restart for you. If you would like to know more, you can search online later for this error: iaStorAV.sys."
  • "STOP 0x0000000A: IRQL_NOT_LESS_EQUAL – iaStorAV.sys"
  • "STOP 0x0000001E: KMODE_EXCEPTION_NOT_HANDLED – iaStorAV.sys"
  • "STOP 0×00000050: PAGE_FAULT_IN_NONPAGED_AREA – iaStorAV.sys"
In most cases, you will experience iaStorAV.sys blue screen errors after you’ve installed new hardware or software. These iaStorAV.sys blue screens can appear during program installation, while a iaStorAV.sys-related software program (eg. Microsoft Windows) is running, while a Microsoft Corporation driver is being loaded, or during Windows startup or shutdown. Keeping track of when and where your STOP error occurs is a critical piece of information in troubleshooting the problem.
Causes of IaStorAV.sys Errors:
IaStorAV.sys blue screen errors can be caused by a variety of hardware, firmware, driver, or software issues. These could be related to either Microsoft Windows software or Microsoft Corporation hardware, but it is not necessarily the case.

More specifically, these iaStorAV.sys errors can be caused by:
  • Incorrectly configured, old, or corrupted Microsoft Windows device drivers. (very common)
  • Corruption in Windows registry from a recent iaStorAV.sys-related software change (install or uninstall).
  • Virus or malware infection that has corrupted the iaStorAV.sys file or related Microsoft Windows program files.
  • Hardware conflict after installing new Microsoft Corporation hardware, or hardware related to iaStorAV.sys.
  • Damaged or removed system files after you’ve installed software or drivers related to Microsoft Windows.
  • iaStorAV.sys blue screen caused by a damaged hard disk.
  • iaStorAV.sys STOP error due to memory (RAM) corruption.

How To Fix IaStorAV.sys Errors:

Below is a list of troubleshooting steps to resolve your iaStorAV.sys problems. These troubleshooting steps get progressively more difficult and time consuming, so we strongly recommend attempting them in ascending order to avoid unnecessary time and effort.

Step 1: Update Your PC Device Drivers:

It's highly likely that your IaStorAV.sys blue screen errors are related to corrupt or outdated device drivers. Drivers can work one day, and suddenly stop working the next day, for a variety of reasons. The good news is that you can often update the device driver to fix your BSOD problem.

Finding the exact driver for your iaStorAV.sys-related hardware device can be extremely difficult, even directly on the Microsoft Corporation or related manufacturer's website. Even if you are experienced at finding, downloading, and manually updating drivers, the process can still be very time consuming and extremely irritating. Installing the wrong driver, or simply an incompatible version of the right driver, can make your problems even worse.

Because of the time and complexity involved in updating drivers, we highly recommend using a driver update tool such as Driver Booster (Developed by Microsoft Gold Partner IOBit) to automate the process.

Driver Booster updates all of your PC device drivers, not just those associated with your SYS blue screen error. Driver Booster proprietary One-Click Update™ technology not only ensures that you have correct driver versions for your hardware, but it also creates a backup of your current drivers before making any changes. Maintaining a driver backup provides you with the security of knowing that you can rollback any driver to a previous version if necessary. With updated device drivers, you can finally unlock new hardware features and improve the speed and performance of your PC.

Step 2: Repair Registry Entries Associated with Microsoft Windows:

Sometimes iaStorAV.sys and other blue screen errors can be related to problems in the Windows registry. Third-party program installation or malware infection may have corrupted the registry entries associated with Microsoft Windows, causing iaStorAV.sys STOP errors to occur. Thus, these invalid Microsoft Windows registry entries need to be repaired to fix the root of the problem.

Manually editing the Windows registry to remove invalid iaStorAV.sys keys is not recommended unless you are PC service professional. Incorrectly editing your registry can stop your PC from functioning and create irreversible damage to your operating system. In fact, one misplaced comma can prevent your PC from booting entirely! Because of this risk, we highly recommend using a trusted registry cleaner such as CCleaner to scan and repair any iaStorAV.sys-related registry problems. Using a registry cleaner automates the process of finding invalid registry entries, missing file references (like the one causing your iaStorAV.sys error), and broken links within the registry. A backup is automatically created before each scan, with the ability to undo any changes in a single click, protecting you against the possibility of PC damage. The best part is that repairing registry errors can also dramatically improve system speed and performance.

Step 3: Conduct a Full Malware Scan of Your PC:

There is a chance that your iaStorAV.sys STOP error could be related to a malware infection on your PC. These malicious intruders can damage, corrupt, or even delete SYS-related files. Furthermore, there's a possibility that the iaStorAV.sys blue screen error you are experiencing is related to a component of the malicious program itself. We recommend you to Scan your PC with some of trusted antivirus software like 360 Total Security, ESET, AVAST Antivirus, and Microsoft Windows Defender, ForeFront or Security Essentials etc.

Step 4: Utilize Windows System Restore to "Undo" Recent System Changes:

Windows System Restore allows you to "go back in time" with your PC to help fix your iaStorAV.sys problems. System Restore can return your PC's system files and programs back to a time when everything was working fine. This can potentially help you avoid hours of troubleshooting headaches associated with SYS errors.

To use System Restore (Windows XP, Vista, 7, 8, and 10):
Click the Start button.
  1. In the search box, type "System Restore" and hit ENTER.
  2. In the results, click System Restore.
  3. Enter any administrator passwords (if prompted).
  4. Follow the steps in the Wizard to choose a restore point.
  5. Restore your computer.

Step 5: Uninstall Recently-Installed Program Associated with Microsoft Windows / IaStorAV.sys:

Step 6: Run Windows System File Checker ("sfc /scannow"):

System File Checker is a handy tool included with Windows that allows you scan for and restore corruptions in Windows system files (including those related to iaStorAV.sys). If System File Checker finds a problem with your SYS or other critical system file, it will attempt to replace the problematic files automatically.

How to run System File Checker (Windows XP, Vista, 7, 8, and 10):
  1. Click the Start button.
  2. Type "command" in the search box... DO NOT hit ENTER yet!
  3. While holding CTRL-Shift on your keyboard, hit ENTER.
  4. You will be prompted with a permission dialog box.
  5. Click Yes.
  6. A black box will open with a blinking cursor.
  7. Type "sfc /scannow" and hit ENTER.
  8. System File Checker will begin scanning for iaStorAV.sys and other system file problems (be patient - the system scan may take a while).
  9. Follow the on-screen commands.

Step 7: Install All Available Windows Updates

Microsoft is constantly updating and improving Windows system files that could be associated with iaStorAV.sys. Sometimes resolving your blue screen of death problems may be as simple as updating Windows with the latest Service Pack or other patch that Microsoft releases on an ongoing basis.
To check for Windows Updates (Windows XP, Vista, 7, 8, and 10):
  1. Click the Start button.
  2. Type "update" into the search box and hit ENTER.
  3. The Windows Update dialog box will appear.
  4. If updates are available, click the Install Updates button.

Step 8: Check for Hard Drive Corruption ("chkdsk /f")

While most storage-related, iaStorAV.sys blue screen errors are caused by problems with your hard disk drivers or storage controllers, in some cases these BSODs can be attributed to hard drive corruption.

Over time, your PC can develop errors on the hard disk drive due to repeated, unintended misuse. Improper shut downs, “hard closing” programs, corrupt or incomplete installation of software (eg. Microsoft Windows), Microsoft Corporation hardware failure, and power outages can corrupt your file system and stored data. As a result, you may experience blue screen errors associated with iaStorAV.sys.

Microsoft has included a convenient utility called “chkdsk” (“Check Disk”) to scan and repair hard disk corruption. If the previous troubleshooting steps did not resolve your iaStorAV.sys STOP error, running “chkdsk” may uncover and repair the cause of your BSOD.

How to run “chkdsk” (Windows XP, Vista, 7, 8, and 10):
  1. Click the Start button.
  2. Type "command" in the search box... DO NOT hit ENTER yet!
  3. While holding CTRL-Shift on your keyboard, hit ENTER.
  4. You will be prompted with a permission dialog box.
  5. Click Yes.
  6. A black box will open with a blinking cursor.
  7. Type "chkdsk /f" and hit ENTER.
  8. "chkdsk" will begin scanning for hard disk corruption that could be causing iaStorAV.sys STOP errors.
  9. Follow the on-screen commands.
Complete list of “chkdsk” commands (Advanced PC users only):
  1. /F – Scans and fixes errors on the disk.
  2. /V – Displays every file name in each directory as the disk is scanned.
    • FAT/FAT32 Drive: This will display the full path and name of every file on the disk.
    • NTFS Drive: Displays cleanup messages.
  3. /R – This command locates bad sectors and recovers readable information (assumes /F).
  4. /L:size (NTFS only) – This command changes the log file size to the specified number of kilobytes. It will display the current size if size is not specified.
  5. /X – If necessary, it forces the volume to dismount first. All opened handles to the volume would then be invalid (assumes /F).
  6. /I (NTFS only) - Performs a less rigorous check of index entries.
  7. /C (NTFS only) - Skips checking of cycles inside the folder structure.
  8. /B (NTFS only) - Re-evaluates bad hard disk clusters on the volume (assumes /F).

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