Hi compax, welcome to SAF
I splitted your post to this new thread, as posting on someone else's topic may confuse our members and cause your question to be overlooked.
You don't need any floppy to free disk space, just delete the files you don't want anymore using Windows Explorer. Take care not to delete system or critical files.
As a first tought, I would suggest you to download and run CrapCleaner from
http://www.ccleaner.com/Note: in CCleaner: go to <options/advanced> Uncheck "Only delete files in Windows Temp folders older than 48 hours"). This will wipe all your temp files and free some disk space.
Chris