Hello,
since I have installed DF beta both beta and live games tend to shut down suddenly displaying the following error - ERROR #2520290416 (0000000000) File I/O error.
After the game shut downs I am not able to launch any Battle Net related shortcuts on my desktop as it says that they are missing and could not be found on the computer. Only after the reset of my device it all works again.
I have tried scanning for corrupted files in Retail version of WoW and it made me do some update but did not help.
Edit:
I have actually found out that when this error pops up my disc D disappears. When I reboot computer it comes back but it only happens when I play World of Warcraft. Any help would be highly appreciated.