So today while installing the management tools on my localhost I ran into this issue of the repeating reboot request. The url linked in the install window specifically mentions how it's unsafe to try to work around this issue by modifying registry entries... oh really? lol.
Located here:
Computer\HKLM\System\CurrentControlSet\Control\Session Manager
I deleted the DWORD value PendingFileRenameOperations, then hit re-try on the installer and boom. Done.