vc++ 2022 minimum or additional runtime missing the feature you are trying to use is in a network resource that is unavailable
错误引起原因是清理了package cache下的msi文件I've been searching for a solution to this problem and finally figured it out so here it is for others still in the dark:open up regedit (start --> run --> regedit)navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\ProductsSearch for "Microsoft Security Client" which should be a subbranch of the above directoryit will look like "some random string"\SourceList\ which contains Media and NetRight Click on that random string and select Export to back it up in case something breaksRight Click on that random string and select DeleteRerun the installerThis worked for me, and it will also work for any program that gives an error like this, not just Microsoft Security EssentialsCheers,Dragos