Backup does not start, prozess get stuck in Taskmanager

[ZI0MATRIX]

Ok after Steam AGAIN ruined my Skyrim SE installation I wanted to use my backup to undo the damage.

Using my complete back method worked once before but now it won´t start an the process stays at roughly 230MB in the task manager.

Contact Steam support to tell my how to undo the update, they wont tell me.

I already expect the standart answers like uninstall mods and test what works(249 active plugins ...yeah sure...) or just install everything again... . Tried that doesnt work.

 

So my question is how do I fix this.

Which log tells me where it get stuck?

How do I need to make complete backups today so that this does not happen again?

 

Question for the future: If I buy, let s say Fallout 4, as a non steam version from amazon, will this let me be in charge of updates? I´m really pissed and I don´t trust steam anymore.