AVG upgrade issues

Hi Amby, sorry to hear about the situation.
Please try to Reboot your computer in Safe Mode and check if you're able to Turn On your computer.
Also, AVG Anti Virus will not crash your PC. Unfortunately, I'm unable to locate your account with the present email address, I've sent you an Email to provide us the the Email Address registered with AVG to locate your account. Please check your Mailbox.

i have just upgraded on renewal my AVG anti-virus software and my PC is now dead!.. help!!! can't even power it on…

Hi Amby, sorry to hear about the situation.
Please try to Reboot your computer in Safe Mode and check if you're able to Turn On your computer.
Also, AVG Anti Virus will not crash your PC. Unfortunately, I'm unable to locate your account with the present email address, I've sent you an Email to provide us the the Email Address registered with AVG to locate your account. Please check your Mailbox.