You can check System Restore to aquire more space.
The below may be of some use.
My Digital Life <
http://www.mydigitallife.info>
In System Properties’ System Protection tab, there will be a
Protection Settings section.
Select a drive and click on
Configure button to change the parameters related to System Protection and System Restore.
The
Max Usage value can be set to limit the maximum amount of disk space System Protection (System Restore) can use.
Current disk space usage information is shown as a guideline, and old restore points will be deleted as allocated space is depleted to make room for new restore points.
Note that the disk space used for system protection is set in percentage (%), with amount of disk space automatically calculated and shown on screen. Click OK or Apply when new value is set.
It’s also possible to configure whether backup only system settings, previous versions of files, or both, or simply turn off System Protection
There are other options for aquiring more space, such as disabling parts of Indexing.
Running Ccleaner (
http://www.piriform.com/ccleaner) and Windows 7 "Disc Cleanup".
With a 32bit system and two programs listed, there probable should be more space available. More then what was aquired removing old Windows files.