Yesterday I noticed that I can no longer install or uninstall programs. I also found out today that I can't install updates on any programs (for Windows, my graphics card) and I can't access Programs and Features. I included screenshots of some of the errors I've gotten. The biggest errors I get is the missing msi.dll and errors saying "Windows cannot find '::{26EE0668-A00A-44D7-9371-BEB064C98683}...:{D450A8A1-9568-45C7-9C0E-B4F9FB4537BD}'.
I've searched around for solutions, but nothing has helped because most of the solutions require me to install something, which I can't do. Some solutions required me to edit stuff in the registry, but I can't do that either. I've tried downloading updates for Windows, but the Important updates do not download.
I was able to run Virus scans and everything comes up clean. Microsoft Fixit brought up an issue with the registry, but that didn't fix any of the issues. The only thing I can think of that could have caused the issue was installing Wondershare Video Editor yesterday. I installed it to combine a few .ts files. Ever since I installed it, I haven't been able to do anything I listed above. What can I do to fix this?
I've searched around for solutions, but nothing has helped because most of the solutions require me to install something, which I can't do. Some solutions required me to edit stuff in the registry, but I can't do that either. I've tried downloading updates for Windows, but the Important updates do not download.
I was able to run Virus scans and everything comes up clean. Microsoft Fixit brought up an issue with the registry, but that didn't fix any of the issues. The only thing I can think of that could have caused the issue was installing Wondershare Video Editor yesterday. I installed it to combine a few .ts files. Ever since I installed it, I haven't been able to do anything I listed above. What can I do to fix this?