My acer tablet screen froze after I accidentally deleted apps that I don't need. How can I fix other than buying a new tablet
First, try rebooting. If that doesn't fix it you may consider restoring the device to the original factory settings. A word of warning...restoring to factory settings will take the tablet back to the way it was when originally purchased. All passwords, updates, music, photos, videos, audio recordings, apps and so on added after it was purchased will be deleted. So don't do this if you are concerned about losing the aforementioned data and files. To do a factory reset go to settings and look for a restore option. It may be under something like system restore, device settings, back up and restore or something similar. Once you find it, it should warn you that your device will be restored to factory settings and that all post factory apps, passwords, data and files will be deleted. If you still want to restore your device follow the instructions. You will then have to set everything up from scratch as if it was just purchased. I did this with a Kindle Fire. After the factory restore I reinstalled my apps, added all my accounts (email and so on), downloaded all my books, music, etcetera, and it has worked great since.