Solution 1: Reset FSRM

In this method, we will simply reset File System Resource Manager (FSRM), through command prompt. To do that, press Windows key and type cmd. In the search results, right click on cmd, and choose Run as administrator. In the black command prompt window, type the following command and press Enter: fsutil resource setautoreset true C:
Where C: is the drive where your Windows is installed.

After the command runs successfully restart your system and run Windows updates now. If you get the error again, then move on to the next method.

Solution 2: Deleting Common Log File System (CLFS) transaction logs

Common Log File System (CLFS) transaction logs when are in a corrupt state, they can cause Windows updates to cause this error. We will simply delete them and a fresh copy will be created by Windows again. To do that, press Windows key and type cmd. In the search results, right click on cmd, and press Run as administrator. In the black command prompt window, type the following commands and press Enter after each command:

If you get an error that these files are in use, then restart your system and then try. If you still get that these files are in use then download Unlocker from this link . Run the downloaded file and install Unlocker. Press and hold Windows key and press R. In the run dialog, type %SystemRoot%\System32\SMI\Store\ and press Enter. Right click on the Machine folder and click Unlocker. If it is in use, then click Unlock All. Now try the commands above to delete the files. Restart your system at the end and check if the issue’s gone. If not, move to next solution.

Solution 3: Run Windows Update Troubleshooter

Go to this link http://go.microsoft.com/?linkid=9830262. The troubleshooter will download and if you can Run/Open it then directly click Run/Open otherwise download and then run it. Click Windows update in the troubleshooter window and click next. It will automatically detect and fix errors it finds. Restart your system and check if the error’s gone. If not, move on to the next solution.

Solution 4: Restart Windows Update Services

BITS service, the Windows Update service, and the Cryptographic service are the services MSI Installer involved in Windows update. Anyone of them can be individually malfunctioning and can cause this error. But we will restart them all to remove any doubt. Click here to download the windowsupdateservices.bat file, right click on it and choose run as administrator.

If the update script opens as a text file, save it as .bat; then right click and choose run as administrator, or copy paste the commands and paste them in command prompt (admin)

Solution 5: Reregister Windows update files

In this step we will reregister the BITS files and the Windows Update files. Click here to download the windows reg update, right click on it and choose Run As Administrator.

Solution 6: Rename Corrupt Update Stores

Sometimes, previously failed updates can also trigger this error. It would be best to rename the old stores, so windows can re-attempt updates in a fresh/clean folder. To do this, Press the Windows key to open Start (Search) and type cmd. In the search results, right click on cmd, and choose Run As Administrator In the black command prompt window, type the following commands and press Enter after each command: Where C: is the drive where you have installed Windows. ren C:\Windows\System32\catroot2 Catroot2.old Now restart and check if the issue is resolved.

Fix: Windows Update Error “We Couldn’t Connect to the Update Service”[SOLVED] One of the Update Services is not Running Properly in Windows UpdateLast Free Update For Windows 7 Released, KB4534310 And KB45343140 Are The Final…How to Update the Windows Update Agent to the Latest Version FIX  Windows Update Error 0x80071a91 - 14FIX  Windows Update Error 0x80071a91 - 91FIX  Windows Update Error 0x80071a91 - 91