Quite a lot of space is taken up by System restore and its associated shadow
copy - 15% in fact. This may be the cause of your problem. One way to find
out is to delete the system restore points and see if the space is regained.
I wouldn't advise doing this unless your PC is working as you want it but
you can go to control panel, click the system icon, then in the system
properties window click the system protection tab. Remove the tick mark from
the drive(s) that system restore is monitoring and then click OK. After
pressing OK close down the system properties window and control panel. All
restore points etc will be deleted and you should regain the additional
space. If you check Computer (start button>computer) you should see an
increase in available disk space. To re-enable system restore go through the
same process as above but this time place a tick in the box next to the
drive(s) you want system restore to monitor and click OK.
Personally I do not bother with system restore, it is permanently disabled.
My hard drives are regularly imaged using Acronis True Image so if there are
any problems I simply re-image the drive back.
--
John Barnett MVP
Associate Expert
Windows - Shell/User
Web:
http://xphelpandsupport.mvps.org
Web:
http://vistasupport.mvps.org
The information in this mail/post is supplied "as is". No warranty of any
kind, either expressed or implied, is made in relation to the accuracy,
reliability or content of this mail/post. The Author shall not be liable for
any direct, indirect, incidental or consequential damages arising out of the
use of, or inability to use, information or opinions expressed in this
mail/post..
"Aaron Lu" <Aaron
> wrote in message
news:E75827DC-4F91-49EE-93CF-...
> Hi,
>
> I am new to windows Vista, my machine constitute around 220Gb of space. It
> says on My Computer that disk space available is just 150Gb meaning I have
> 70Gb of space used. I checked all folders and it just constitutes around
> 30Gb, can anyone help me understand this?
>
> Or better yet, help me to free around 30Gb more from my disk space used? I
> tried searching for temp files but I don't know which ones are OK to be
> deleted.
>
> Hope someone enlightens me on this.
>
> Thanks.