I finally managed to restore my backup data but now it will not save a backup !!!!

I changed the backup folder to where my old dtabase was and imported.
All worked well I now have my old database resored.
I then changed the backup folder to a folder I created on the hard drive (with write permissions)
Then backed up !! this does not work it failes at about 90% and reports an error
Nothing is written to my newly created folder… … Why?
I would now having struggled to restore my original data base, backup now and in the future.
Why can I not backup to a new folder created on drive C: ?

Hello John,
could you screenshot the error that you encounter during backup?