Guild Wars 2

After attempting to download the new patch that just launched at about 8pm est, I encounter a “serious error” that shuts down my game.

When i click the show details button i get:

Any help would be appreciated.
Thanks

Some errors can be ambiguous and hard to interpret but “Fatal disk-error (23) on write,” doesn’t leave much for the imagination. Make sure the disk is working properly and your account has permission to write to the Gw2.dat file and that there is enough space left on the drive.