Hello, I just wanted to share my frustration, anger and sadness. This is what happened. I used Iobit's Driver Booster to update drivers. It updated some drivers and asked to restart. After the system restarted, my Acer ES1-411 model laptop's touchpad stopped working. I installed the touchpad driver for the model from the Acer website in vain. I formatted the disk and installed the system fresh from the DVD, hoping it would solve the problem (I've been kicking myself ever since for not making disk image backups). It still didn't make the touchpad work, even after updating all the windows updates and again installing the driver. Instead it added more headaches. Now the brightness control isn't working and there is no Wifi setting). The brightness is set at the highest. Decreasing it doesn't work. My eyes hurt and I'm literally having a headache from this. I'm taking my seven month old laptop to the shop tomorrow to get it fixed. So all in all, I have three major problems with my laptop because of my stupidity of not keeping disk image backups and using Iobit's highly dangerous driver updating software. I just hope with my luck that the shop can fix my laptop so that I can get back to work.