[THEBERBSTER]

Hi C
Uninstall and use a registry cleaner.
Post #70 How To Use The Free Registry Cleaner 'Ccleaner' > Pictorial > Includes Download Link
You will get an option as to whether you want to delete your SH5 saved games so you just say no.
You can take a copy as a backup C:\Documents\SH5 of it before un-installilling if you are worried about it.
When you install your game again your saved games including the campaign you refer to will be waiting to be played.
Post #5 Update SH5 From v1.0.5.0 To v1.2.0 Immediately After Installing > Pictorial
Peter