Windows cannot find programs when they are run as administrator on Windows 10

I am unable to run programs with as an administrator. This includes programs that normally run with admin permissions.

When I try to run these programs as an administrator I get an error which says "Windows cannot find 'FILE PATH\program.exe' . Make sure you typed the name correctly, and then try again."

As an example, when I attempt to open task manager I get an error which says "Windows cannot find 'C:\windows\system32\taskmgr.exe'. Make sure you typed the name correctly and try again."

This occurs for any program I try to run as an administrator, no matter the location of the program. In some cases when trying to access administrator settings within control panel, no error message will appear, and the settings will not open.