How to Fix Windows Update Error 0x80071a91

Users have been reporting about getting the error 0x80071a91 on their device while running the Windows update. This can be a serious concern if there are critical updates left pending and making your computer outdated. If a Windows Update is delayed, it is more likely to pose a threat to your system.

Why Does Error 0x80071a91 Occur?

The Error 0x80071a91 occurs “when you don’t state or shut down the Transaction support within the specified file system resource manager due to an error.” Error 0x80071a91 is mainly attributed to the choking of the service named FSRM (File System Resource Manager). But some other causes for this error are also likely to be there, which will be covering later in this article.

6 Methods to Fix Windows Update error 0x80071a91

If you want to get rid of the Error 0x80071a91, then you need to follow the below-given solutions and make sure which one is appropriate for you.

Method 1: Reset the FSRM Service

Resetting FSRM means to merely reset the File System Resource Manager (FSRM), using the command prompt. To do so, follow the steps as mentioned below:

1. Press the Windows key.
2. And then type “cmd” in the search panel and hit the Enter.
3. Right-click on “cmd” in the Search results.
4. Then choose the “Run as administrator” option.
5. Now, type “fsutil resource setautoreset true C:\” in the black command prompt window and hit the Enter.
6. After the command runs successfully, you need to restart your system and then try rerunning the Windows update.
7. If you find the same error again, you should then move on to the next solution as mentioned below.

Method 2: Delete Common Log File System (CLFS) transaction logs

When the Common Log File System (CLFS) transaction logs are corrupted, they can be a big reason behind causing this Windows Update Error. Thus, you can simply delete these corrupt logs, and the Window will recreate a fresh copy of them. To do so, follow the steps given below:

1. Type “cmd” in the search panel and hit the Enter.
2. Right-click on “cmd” in the Search results.
3. Then choose the “Run as administrator” option.
4. In the black command prompt window, you need to type the following commands properly:

• cd /d %SystemRoot%\System32\SMI\Store\Machine
• attrib -s -h *
• del *.blf
• del *.regtrans-ms

5. Make sure you press Enter after typing each command.

Note: If you receive an error that says something as “these files are in use,” you then need to restart your system try the same process once again.

Method 3: Run the Windows Update Troubleshooter

Running the Windows Update Troubleshooter can also fix the error. To run it, follow these steps:

1. Firstly, tap on the Start button.
2. Then tap the gear-like symbol to open the Settings page.
3. Here you need to tap on the Updates and Security option.
4. And go to Troubleshoot.
5. Then select the “Windows Update Troubleshooter” option and run it. Check if this helps.

Method 4: Rename Corrupt Update Stores

It has been noticed that sometimes previously failed updates triggered this error. So without taking anything for granted, It would be better to rename the previous or old stores, so that your Windows can re-attempt updates in a new/clean folder. In order to do this, see these steps:

1. Press the Windows key to open the Search panel.
2. Type “cmd” in the Search panel.
3. Then right-click on “cmd” in the search results.
4. Choose the “Run As Administrator” option.
5. Type the following commands in the black command prompt window:

• ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
• ren C:\Windows\System32\catroot2 Catroot2.old
• Make sure that you press Enter after typing each command.

6. Now restart your device and check if the issue is fixed.

Method 5: Disable the AntiVirus Software Temporarily

The AntiVirus software installed on your device is also likely to be interfering with the Windows Update process. Thus, in order to resolve this error, you can temporarily disable the AntiVirus software and check if it works.

Method 6: Restart the Windows Update Services

Restarting the Windows Update Services can also fix the Error 0x80071a91.  Follow these steps to restart the Windows Update Services:

1. Launch the Service Manager and make sure that they are started.
2. Also, you have to ensure that their Startup type is as follows:

• Cryptographic Service – Automatic
• Background Intelligent Transfer Service – Manual
• Windows Update Service – Manual (Triggered)

Thank you for reading this article. Hopefully, at least one of the methods as mentioned above should resolve this error. Let us know in the comment box!

Harry Williams is a Microsoft Office expert and has been working in the technical industry since 2002. As a technical expert, Harry Williams has written technical blogs, manuals, white papers, and reviews for many websites such as www.office.com/setup.

Source: office Setup