Batman: Arkham City - Pre-Patch v1.01 torrent

1. Throw in the game folder
2. Install the patch.
3. To play.

The official patch will be released in the near future. The size is ~ 125 MB. Performance will be approximately the same, but all the glitches in DX11 mode, will be eliminated.
And here's a preliminary patch that is tested on GFWL servers and not available to the public.

For those who do not want to wait and willing to try yourself as a potential beta tester, can download the update below.
I would strongly recommend to wait for the patch, office, or at least make a backup of existing files.