Normally I'd use Kaspersky, but it's expired at this point.
As I said before, I cannot uninstall it due to some error dialogs it throws.
I see Kaspersky has a removal tool on their website I could try, which seems to be working.
I can try to remove Microsoft Security Essentials too, I don't really care about keeping them if I can just reinstall them once the Windows installation is working properly again.
At this time, I'm sure the issue is still within the Windows services themselves more than anything else, as the Diagnostic Policy Service could not start to troubleshoot my network issue.
I think I forgot to mention that, but I did mention earlier I think there is likely something wrong with the permissions on the system, so the system files are intact, but their permissions are not, so when the programs run they can't do what they're supposed to.
I imagine icacls is the solution here, but I'm not sure if it will be enough...