Almost clean , just one virus left.
Download Pocket Killbox:
http://www.atribune.org/downloads/KillBox.exe
Boot in safemode again and fix this one with
hjt:
O4 - Global Startup: winlogin.exe
Start Killbox and place a tick next to [x]delete on reboot.
Copy this list into the windows clipboard:
C:\WINNT\System32\win32sockdrv.dll
C:\WINNT\System32\yuetyutr.dll
C:\WINNT\System32\winlogin.exe
Back in Killbox go > file > paste from clipboard,
Click the
red highlighted X button and say yes to the prompt, then click OK.
Exit Killbox and restart your PC.
And for the firewall most of the time you can permit internet access , but you should almost always block server access.
You can allow all the apps you know and trust internet access , and putt a tick in "always perform this action" then for that app you never get asked again.
When you start an app for the first time it will probebly ask for internet access to check for updates or something , if you don't know what it is , try blocking (without placing a tick in "always perform this action") and see if youre app still works ok , then you can keep it blocked.