Jon said:
"any restore point more than about a week old is probably worthless."
Why are they probably worthless?
No advantage to removing old restore points. But any restore point
more than about a week old is probably worthless.
I don't know about worthless; in the event malware, corruption or plain
old errors get wrapped up in a restore point it could be pretty handy to
be able to go back to older points even if some apps may need to be
restored because they were installed after the date of the restore
point. I'd rather be able to go back a week or more than to be have to
re-image or rebuild the drive.
If you have already
installed XP Service Pack 3 (which does create a large restore point)
more than say two or three weeks ago then that large restore point
is most likely no longer available so you might want to consider
reducing the amount of disk space allowed for System Restore points.
The default is set to 12% of your drive or the size of your Windows
partition if you have more than one partition. If you do have more
than one partition on the same drive then turn off creating restore
points on the non Windows partition or restore points on a second
hard drive as they are of no value.
The above however is very good information, not just for SP3. If you do
turn it off on non-system drives, windows will complain during a restore
that drives x, y and z weren't included in the restore points and so
won't be restored, but ... big deal - there is nothing on them as a rule
that could be restored anyway. OTOH it doesn't really waste any space on
other drives since the allocation isn't used unless there is something
to put in it. Turning off restore points on a non system drive doesn't
result in any space increase in other words.
One can and probably should however, set the 12% allocation to a lower
number. This is an assumption and not something I'm sure of, but: If
you decide to do that, be sure to check periodically to be certain there
is room there to still hold at least two restore points, or you could
find yourself with no restore points due to lack of room for them. I
don't know for sure that an error message would be generated if that
happened.
HTH,
Twayne