Microsoft Office 365/2021/2019 installation Error code 0x80071AB1
Many Windows 11 users encounter Error code 0x80071AB1 when trying to download and install a pending Windows update.
This error generally pops up due to the common WU issues and concerns and sometimes automatically gets fixed with a system reboot
To resolve this error code,
Firstly, click on the Start button and then select the settings option
Next, click on the System button in the left pane and go to troubleshoot option in the right pane
After that, click on Other Troubleshooter option
Finally, select Window Update option and Run the troubleshooter