The washer usually acts as a stabilizer to hold the blades in place.
If it loosens, unscrew it and set the front of the blade case down.
To determine if your Dell computer is experiencing a hardware problem, it is recommended that you first run a hardware diagnostic test on your computer.
On most fans, it either holds together with clips where the 2 pieces meet, or it relies on a cap in the middle to keep the case screwed tight.
Cleaning files Cleaning your files helps you remove redundant files, temporary folders, and other unnecessary clutter from your computer.