Please accept our sincere apologies for any inconveniences during usage of our products.
You can fill this feedback form, which goes directly to our product managers.
Can you please describe the issue in more details? (when the BSOD occured, etc.)
If during AVG installation, please gather AVG installation logs, MSinfo32 output and latest minidump file from C:\Windows\Minidump folder, upload it in an archive (zip file) to favorite online storage and provide us with link to it, so we can analyze the situation.