I have a 10-year old tablet computer that I picked up for a song a few years ago. It works fine for me as a wireless webcam server. 

It uses a stylus and eventually I scratched the protective film letting in air bubbles, now the film is slowly separating from the device. 

*picture here:*

![enter image description here](https://i.stack.imgur.com/FYKCN.jpg)

Is the film replaceable/repairable in a DIY fashion or is it a goner? I hate to toss working tech but it's certainly not worth sending out for repair.

**NOTE:** The computer itself still works great, but the screen surface is no longer smooth and further stylus use just snags on the breaks and bubbles in the film.

**UPDATE:** It turns out the protective film is not just the thin sheet but the thicker plastic underneath as well. The adhesive is old enough to just pull up now. I tried this unsuccessfully a few years ago and stopped, thinking I might break it. A little alcohol on a cotton swab to clean away the last bits of dried adhesive and I'm good to go! Thanks for your help guys.