New
#11
After uninstalling with Revo in Advanced mode, cleaning up using CCLeaner "Run Cleaner" then Registry tab, then Auslogics Disk and Registry Defraggers, run sfc /scannow to see if the uninstalls caused any permanent System File Damage as often happens. Bloatware is insidious in its removal, too.
If you still need a clean reinstall and Dell won't any longer send a clean copy of the OS, then it has become the last maker to succumb to bloatware enforcement, which all manufacturer's are adopting to protect their thin profit margin. You can only avoid it by buying a business computer, it seems.
But you can still get a clean install by borrowing or locating a retail Win7 DVD for your version, then installing it using the Product Key stickered to your machine. If necessary all versions can be unlocked in any installer by extracting the ISO then googling/running the ei.cfg removal tool, then burn an all-versions DVD to use with your key.