Archives for : June2011

How to reset the archive bit in NTFS

I’ve been plagued by a problem with my back up software thinking it has to back up everything again instead of working in a normal incremental fashion.  Turns out it was because something had changed the archive bit flag in all the files being backed up.

After much searching and head scratching I’ve finally worked out how to change this archive bit so that my backups work properly again.  To set files as archived and not needing backup, type the following from a command prompt:

attrib -a /s

and to set files as needing to be archived:

attrib +a /s