O.K. Nice one and seriously... Thanks a lot for these patches/downgrades.

Cheers Dalet, I beat you to it ;), I see you never mentioned the Misc and esm? are they to do with your patch? I have them just incase...

Hi, I am trying to downgrade but I'm getting an error that says:

A duplicate file name exists, or the file cannot be found. Try running as an admin? I am running it as an admin, however the error still occurs. Any ideas?

EDIT: Nevermind solved it... I had loose .BAK files from the last downgrade and they caused the error, once I deleted them the patch ran fine. for anyone interested the files were :

Fallout4.exe.bak - In the main fallout 4 folder

and..

Fallout4 - Interface.ba2.bak Fallout4 - Misc.ba2.bak Fallout4.esm.bak - All in the Fallout 4/Data folder