New
#11
OK on the key.
Try the method suggested by WHS for accessing recovery.
If it fails, you likely have to do a clean install by downloading the ISO from mydigitallife.info.
I assume that is Windows Home Premium 64 bit that you have?
If so, you need X17-58997.iso from this link; scroll down till you see it:
Official Windows 7 SP1 ISO from Digital River « My Digital Life
That will give you a new install WITHOUT whatever else Acer may have included with the machine.
You will need to back up all of your personal data or you will lose it.