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I'm going to reset my Android tab because its internal memory is low.
Is it safe to erase the system data of my android tablet (not rooted)? If I restore the factory setting of my Android, will the uninstallable apps be also removed or only those that can be uninstalled?
Is it safe to erase the system data of my android tablet (not rooted)?
Yes, it's safe to Factory Reset your tablet.
If I restore the factory setting of my Android, will the uninstallable apps be also removed or only those that can be uninstalled?
Only those that can be uninstalled will be removed. Doing a Factory Reset is like making your phone brand new. You will lose all your installed apps and all your data, but you will still have the stock / default apps that your phone came with.
Once the phone reboots after a Factory Reset, you start from scratch. You will log-in to your Google account, and have the option of restoring the apps you installed and bought before from Google Play.
Related questions:
Your phone will be as good as the day you brought it. Factory resetting your phone only cleans up the apps you installed yourself and not the preinstalled applications. A factory reset really only deals with the Data and the Cache partitions and does not mess with the system.
