I got the same bug that everyone else seems to be getting when trying to update from 1.02 to 1.03. The exe failed to be replaced and as I read in the forum, a game reinstall is the only way to fix this error.

So I got my ACR disc and completely reinstalled (keeping my 97% SP save of course ). After starting the game from the launcher, I updated to 1.02 without any problems and also updated to 1.03 non-problematically. Just after I click PLAY from the launcher, however, I get an error saying ACRSP.exe has stopped working. I have no idea why this problem occurs, seeing that I have installed the latest software for my GPU and have an up-to-date DirectX 11.
Here is the additional info on the error:

Problem signature:
Problem Event Name: APPCRASH
Application Name: ACRSP.exe
Application Version: 0.0.0.0
Application Timestamp: 4f3a78e5
Fault Module Name: ACRSP.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 4f3a78e5
Exception Code: c0000005
Exception Offset: 0029c693
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

if anyone can help I would really appreciate it.