|Googled "Key to access Recovery partition in Acer" and here is what came up.|
There appear to be a couple of promising quality answers with details. Read the first 3 or 4 until you understand the procedure.
*** Understand that if you have any files on the system that you do not have any back up of, they may be lost completely. If you need to save any files, first do that before doing the factory restore for the best chance of recovering everything. Make a Live Linux CD/DVD and boot to that (not install), then access your hard drive and save all you may need before proceeding. I have had good results with Puppy Linux for this purpose, just understand that with Linux you need to Unmount a drive when you are finished accessing it. Save files to a USB source and put it away. Then proceed with your restore.
Another option with Windows 7 is that if you made a Repair Disk when the machine was new, you can use that to boot into Windows Repair Console and do a System Restore to an earlier date when all was working well. If thsi works, you will need to scan the system with Malwarebytes and your updated antivirus program, but you do not loose your installation, preferences, or your files. If you did not make the Repaid Disk yet, you can still make one from another Windows 7 machine as log as both are either 32bit or 64bit and use that.
You have to be a little bit crazy to keep you from going insane.