Hi Gabriel J W,
You can follow this following article to troubleshoot this kind of issue:
You can't install updates in Windows Vista, Windows 7, Windows Server 2008, or Windows Server 2008 R2
https://support.microsoft.com/en-us/kb/2509997
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.