reset my laptop

See http://smallbusiness.chron.com/reset-acer-aspire-one-factory-settings-52657.html

"Step 1
Click "Start | All Programs | Acer Empowering Technology." Click "Acer eRecovery Management."

Step 2
Click "Restore" and select "Restore System to Factory Default." The computer will restart and boot into the recovery utility.

Related Reading: How to Fix the Startup of an Acer Aspire One

Step 3
Click "Yes" when prompted. Click "Yes" again to revert the Acer Aspire One to its factory state."