You mean disk space.
Not memory.
You have a 120GB hard disk drive - which means about 111GB usable
space.
Find out what might be using the space..
Do you have hidden and system files visible?
How's your system restore settings?
Used Disk Cleanup?
Is hibernate turned on and do you use that feature?
Uninstalled unnecessary applications lately?
Other ways to free up space..
SequoiaView
http://www.win.tue.nl/sequoiaview/
DX Hog Hunt
http://www.dvxp.com/en/Downloads.aspx
JDiskReport
http://www.jgoodies.com/freeware/jdiskreport/index.html
Those can help you visually discover where all the space is being
used.
If you are comfortable with the stability of your system, you can
delete the uninstall files for the patches that Windows XP has
installed..
http://www3.telus.net/dandemar/spack.htm
You can use an application that scans your system for log files and
temporary files and use that to get rid of those:
Ccleaner (Free!)
http://www.ccleaner.com/
You can run Disk Cleanup - built into Windows XP - to erase all
but yuor latest restore point and cleanup even more "loose files"..
How to use Disk Cleanup
http://support.microsoft.com/kb/310312
You can turn off hibernation if it is on and you don't use it..
When you hibernate your computer, Windows saves the contents of
the system's memory to the hiberfil.sys file. As a result, the
size of the hiberfil.sys file will always equal the amount of
physical memory in your system. If you don't use the hibernate
feature and want to recapture the space that Windows uses for the
hiberfil.sys file, perform the following steps:
- Start the Control Panel Power Options applet (go to Start,
Settings, Control Panel, and click Power Options).
- Select the Hibernate tab, clear the "Enable hibernation" check
box, then click OK; although you might think otherwise, selecting
Never under the "System hibernates" option on the Power Schemes
tab doesn't delete the hiberfil.sys file.
- Windows will remove the "System hibernates" option from the
Power Schemes tab and delete the hiberfil.sys file.
You can control how much space your System Restore can use...
1. Click Start, right-click My Computer, and then click Properties.
2. Click the System Restore tab.
3. Highlight one of your drives (or C: if you only have one) and
click on the "Settings" button.
4. Change the percentage of disk space you wish to allow.. I
suggest 5% or higher.
5. Click OK.. Then Click OK again.