It sounds like you may have accidentally deleted or damaged a system file that is necessary for running PDFs and other programs. The error message you're seeing specifically mentions a "side-by-side configuration," which refers to a Windows feature that allows multiple versions of a DLL (dynamic-link library) to be stored on a computer at the same time. One possible solution is to try restoring your system to a previous point using the system restore feature.
try using the sxstrace.exe tool, which can provide more detailed information about the specific DLLs that are causing the problem. You can find this tool in the Windows SDK, which can be downloaded from the Microsoft website. Once you have the tool, you can run it from the command prompt by typing "sxstrace.exe trace -logfile:logfile.etl"
Here is the link from where you can download the tool
https://developer.microsoft.com/en-us/windows/d...
Kindly regards.