I forgot got my administrator password on my acer E 17 laptop

We can't help you with that because we can't see valid proof of ownership so you need to find a local PC Fixer who can see that proof and take the system back to factory settings for you. If you see a recovery option on the first black screen when you power up the machine, you could do that yourself.

Either way, you will have lost all the files, programmes and settings because that's what passwords are there to protect.