.NET Framework is a software development framework for building and running applications on Windows.
Next, we will introduce how to get rid of the 0x80071AB1 error code on Windows 11/10.
Step 2:ClickOther troubleshootersto expand all troubleshooters, and then clickRunnext to theWindows Updatesection.

Step 3:Now, this troubleshooter will scan issues associated with the Windows Update components.
If any fixes are identified, click onApply this fixand follow the on-screen instructions to complete the repair.
Step 2:Go to the Update history.

test whether there are failed .NET Framework Update numbers.
Step 3:Copy the failed update number.
Go to Microsoft Update Catalog and search for the update number.

Step 4:Download it on your PC.
Then double click to launch the installer and then update it.
Step 2:Typesfc /scannowcommand in the elevated command prompt.

This process may take you much time to scan, just wait patiently.
Once done, reboot your PC and test whether the installing error code 0x80071AB1 gets fixed.
Fix 4: Reset Windows Update Components
Step 1: Run Command Prompt with admin privileges.
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Step 2:In thePrograms and Featuresinterface, click theTurn Windows features on or offlink.
Step 3:Check the.NET Framework 3.5 (includes .NET 2.0 and 3.0)box.
Step 4:ClickOKto save the change.

Then, check for Windows updates to see if install error 0x80071AB1 is removed from Windows 11.
Step 3:At theUser Account Controlwindow, clickYesto grant admin access.
To do so,
Step 1:Press theWindowsandRkeys at the same time to open theRundialogue box.

Typeservices.mscand clickOKto open theServicesapplication.
Step 2:From the list of applications, right-clickWindows Updateto selectStop.
Step 3:Next, open File Explorer and go toC:\Windows\SoftwareDistribution.

Remove all the files in the folder.
Step 4:Go back toServicesand right-clickWindows Updateagain.
Once done, restart the computer and look to see if the 0x80071AB1 error is eliminated.

Step 2:Navigate to the media creation tool youve downloaded > run it > accept the license terms.
Two options are offered in theWhat do you want to dowindow.
Besides, PC backup and recovery can guarantee minimized system downtime.
Also, you’re free to choose to back up your data regularly to keep files safe.
To do this work,MiniTool ShadowMakeris a good assistant that can be compatible with Windows 11/10/8/8.1/7.
Besides, it’s possible for you to use it to clone your hard drive and sync files.
This backup software offers a Trial Edition that allows a 30-day free trial for all backup features.
If you want to use it permanently, get itsPro Edition.
Now you’re free to download and try MiniTool ShadowMaker to back up your system.
If you oughta back up files, clickSource > Folders and Filesto select items you want to back up.
Step 3:You only need to clickDestinationto choose a path to save the system image file.
Step 4:ClickBack up Nowto execute the backup task at once.