Error message (text copied from another site, I was too lazy to type it all out ;).. hence some spelling errors left :
“There is not enough disk space to create the volume shadow copy on storage location. Make sure that for all volume to be backup up, the minimum disk space required for shadow copy creation is available. this applies to both the backup storage destination and volume included in the backup. Minimum requirement for Volumes less than 500 megabytes, the minimum is 50 megabyte of free space. for volumes more than 500 megabytes, the minimum is 320 megabytes of free space. Recommended at least 1 gigabytes free of disk space on each volumes if volumes size is more than 1 gigabytes (0x80780119)”
I’ve had it occur after restoring from a system image, apparently it will happen if System Reserved partition has less than about 40% free.
Assign a drive letter, in this example “F:”, to System Reserved partition in Disk Management.
Run following in elevated command prompt :
fsutil usn deletejournal /d /n F:
Remove drive letter after this.