I have experienced a somewhat similar problem.
Recently I bought an IBM Think Pad R60 IntelCore 2 Duo 2GHz T7200, 80 GB HD
which came with VISTA Home Premium.
For the last few weeks I was getting a pop-up each time I switch on my
notebook which said (as I recall) " Schedule System Backup was not
performed as the Computer was turned off, Do you want to backup?" (I cannot
exactly remember the message). So what I did was I clicked "yes" and left the
notebook on for a few hours while I was away.
After I came back I realised that the remaining Hard Disk Space had been
reduced from 35 GB to around 16 GB. I was surprised to see this. Has VISTA
saved a full copy of my Hard Disk within my C: drive?
After reading some of the Posts I changed the settings via "vssadmin". This
has increased the disk space to 21 GB, but still short of what I had before
(35GB).
After reading another post I installed "Treesize Free" to analyse the Hard
Disk and found that Windows+Programme Files+Data File only add up to 22 GB.
("Treesize Free" did not read 3 folders namely the MSOCache, RRbackups and
System Volume Information. The hard disk space excluding the portion
allocated by IBM for VISTA is 70 GB. I am now wondering what has happened to
my hard disk space? Cannot account for GB 70 - 22GB - 21 GB = 27 GB (This
include the folders that were not read by "Treesize Free").
Can anyone please help.
Regards,
Pujitha
"aja" wrote:
> The space is almost certainly taken up by the volume shadow copy service
> (shadow copies/system restore points). By default, it can take up 15% of
> your drive ...in your case, ~ 33 GB.
>
> A simple command -- vssadmin -- is available to show and modify the amount
> of space the service uses. Just type vssadmin in the search box at the
> bottom of the start menu and run the command as an administrator.
>
> Google <vista vssadmin> and you'll find several folks have posted on this
> command. Here's the first useful one:
>
> http://vistasupport.mvps.org/decreas...em_restore.htm
>
> Unless it's bothering you, you should probably just leave it alone for now
> and reset the defaults if you ever need the space. All those extra restore
> points can come in handy if something goes terribly wrong.
>
> Hope this helps.
>