The problem was that I also didn't know what these commands did and of course when I tried restoring through the USB it failed again, then I tried booting into windows and nothing would load, the loading icon on the mouse appeared but nothing else just a black screen. Before this though I was trying to solve the system restore error since I didn't know that the symbolic links were causing the issue at the time so I found some blog site that posted about the issue and mentioned booting into USB windows media and entering command prompt to change the hidden file name of WindowsApps to WindowsApps.old and applying some sort of attrib -h command stuff in the command prompt. So I just set all the sliders to off within the OOSU app and deleted the app from my computer, I then restarted and the message was still there in Windows Update, after tons of searching online and playing around with group policy settings I found that I had to delete a registry key for the message to go away. My problem was initially that after applying and restarting my system, I went into Windows Update and it kept saying 'Some settings are managed by your organisation', I then tried to undo the OOSU settings by restoring from system restore that was created by the app before I applied the settings but of course because I had symbolic links set up I kept getting an error code that the restore couldn't complete.

So I recently finished setting up my Windows 10 installation, I had set many files with symbolic links to my other HDD to save space on my SSD and then finally I installed Shut Up 10 to see if I could get these Cortana notifications to stop, I applied all the recommended settings and then I saw a post on HowToGeek about the damage that OOSU software can do to your system (and other spyware removal tools) by changing and adding registry values etc.

Oosu10