I think you will have to uninstall the programs, and then reinstall them.
As for freeing up some space, perhaps this might help:
Download and Install
CCleaner.
When it is installed, run it and make sure the following checkboxes are
checked.
Internet Explorer -->
Temporary FilesInternet Explorer -->
Cookies (optional)Mozilla Firefox -->
Internet CacheMozilla Firefox -->
Cookies (optional)System -->
Temporary FilesSystem -->
Empty Recycling Bin (optional but recommended if low on disk space)You can check whatever else you want but you should know that whatever you check will be
unrecoverable.
When you are done,
Run the Cleaner.