Shut down your PC. Wait 5-10 seconds. Turn it back on. - Your PC is now back at default state.
If you still have problems, go into "services.msc". Click on "startup type" to organize them. Scroll down till you see "disabled". Right click them, click properties, change to automatic. Once all are done, Shutdown, wait 5-10 seconds. Turn PC back on. You should be good.
This is all I know, sorry.