Just do a regedit dump
You can export the entire thing to a text file, then redo it if it fucks up.

As for allocating a drive letter, right click on 'Computer', go to 'Manage', then the options you need are under 'Disk Management'
( Agnostic Antichrist Baltimora, Mon 11 Feb 2013, 9:59, 1 reply, 12 years ago)

Tried the disk management stuff - it won't let me initialise the drive.

( Fucking hell Jeff I am not a robot, Mon 11 Feb 2013, 10:01, Reply)

That doesn't sound good at all, I applaud your appealing to someone else to do it.
What does it show up as in Disk Management?

Does it mention the file system?
( Agnostic Antichrist Baltimora, Mon 11 Feb 2013, 10:04, Reply)

Can't remember & can't face connecting it all again now.

( Fucking hell Jeff I am not a robot, Mon 11 Feb 2013, 10:09, Reply)

Alright, just thinking that if it doesn't recognise the file system, that could be a reason for it to not allocate a letter

( Agnostic Antichrist Baltimora, Mon 11 Feb 2013, 10:35, Reply)