Hi,
okay, so after booting my PC earlier today Windows System Maintenance started up without prompting and after a while had this to say:
Attempt repairs of disk volume errors
Reboot computer to repair volume problems such as bad sectors, lost clusters, cross-linked files, and directory...
bad sectors
chkdsk
command line
disk issues
disk space
diskvolume
error
file system
lost clusters
maintenance
maintenance tips
pc repair
reboot
repair utility
troubleshooting
user experience
volume repair
windows
windows update