Solve win10 installation.net3.5 error failure code 0x800F0954

question

Installing .net 3.5 reports an error, the error code is 0x800F0954, and the screenshot of the error is as follows:

Solution

1. Open the Registry Editor:
win+r and enter regedit to run as an administrator;

2. Find the path:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU

3. Find the registry under this path: UseWUServer Change its value to 0, remember the original value;
4. After changing, open services to find the service of Windows update , restart the service;
5. Try to install .net3 again .5;
6. After the installation is complete, restore the previously modified registry values ​​to their original values.