Windows Vista (Business, Enterprise, and Ultimate editions), has a new feature called Restore Previous Versions. Every time a system restore point is created, new versions of your files are created at the same time.
To restore from previous versions of a file: browse through your documents folder and right mouse click on the file name, then click Restore Previous Versions.
From the list of previous versions, select the applicable date to restore from, and then save a copy of the entire document or overwrite the current version.
Posts
