This application has encountered a critical error:
ERROR #134 (0x85100086) Fatal Condition
Program: C:\Program Files\World of Warcraft\Wow.exe
Failed to open archive Data/wow-update-13164.MPQ. Missing or corrupted data.
Unable to recover using data from the network. Please check your Internet connection and try again.
 err=4 text=Win32 Open - Data\wow-update-13164.MPQ.writeCacheBackup
 err=0 text=Manifests::ReadDirectFile - ReadDirectFileFromBuffer failed
 err=0 text=ManifestInfo::ReadDirectFileFromBuffer - manifest_partial tag failed
 err=0 text=Manifests::ReadDirectFile - LoadFile failed
 err=4 text=Win32 Open - wow-13329-0658AFCDDF4D212A872B108F25947FA4.mfil
I tried anything written in other threads, checking if IE is running in offline mode (Same for Windows Live Mail and Firefox), opening ports on my router even if I never had to, disabling Windows Firewall. Setting every LAN Option to "Automatically detect". I also unistalled my previous antivirus "AVG" and installed a new one "Avast!" but nothing changed. I would like to say that I have WoW installed on my Notebook too and when I tried to start the Launcher AVG 8.0 told me that it was a Malware, I ignored the message but since that error I cannot play on that PC too. I think there's some damaged string/file inside the new AVG Virus archive because It had to update when I started both PCs and since that update I cannot do anything. I hoped it would solve itself by now, but it's not, and it starts to really piss me off.