If easy mode didn't work for you and the 0x800f0954 problem persists (or if the error also appears during deactivation), you can alternatively try to repair the .NET Framework with the DISM command-line-based tool . To do this, you need the original .NET Framework installation files on Windows installation media or in a corresponding ISO file. DISM is a pre-installed Windows error-fixing tool that can be run from the command line and requires administrator rights.
To fix the 0x800f0954 error using the command line, proceed as follows (if you have a ready-to-use installation media, you can skip directly to step 3):
Step 1 : If you don't have an original Microsoft DVD on hand, you can create an ISO file with the Windows Media Creation Tool. To do this, download the tool through the link.
Step 2 : later, by double-clicking, you integrate the finalized ISO file as a new disk , which you can access normally through the explorer. This disc can be recognized by the name ESD-ISO .
Step 3 : Right-click on the Windows icon and open the system menu. Here, select? Command Prompt (Administrator)? or? Windows PowerShell (Administrator) ?. Depending on the configuration and version of Windows, only one of these two menu items will be displayed.
Step 4 : Now type the following command in the corresponding command line program: