BSODs with minidump attachments

Recently upgraded from Windows XP 32bit to Windows 7 Ultimate 32bit. I've been having BSOD's regularly. Posting the minidump files.

Here are the more recent ones, including today's:

Remove any Zone Alarm Firewall/AV with the Removal Tool
rt86win7.sys is blamed, and it's your RealTek networking driver, Update it

Code:

BugCheck D1, {148, 2, 0, 8befe9b7}

Probably caused by : NETIO.SYS ( NETIO!FeReleaseCalloutContextList+d )

Code:

Unable to load image \SystemRoot\system32\DRIVERS\Rt86win7.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for Rt86win7.sys
*** ERROR: Module load completed but symbols could not be loaded for Rt86win7.sys

I did the above, even though I've never installed Zone Alarm.

Just got another BSOD:

If you have any Symantec/Norton AV remove it and replace it by MSE

Okay I've done all that. Running okay for now, but I'll post again if I get anymore BSOD's. Thank you.