Similar issues for our attempted install of RU 1. Install cancelled because BE Remote Agent Service was running. Cancelled install. Stopped service, re-ran install. It appeared to finish successfully.
Problem 1: it failed to renable and restart all Exchange and Exchange Related services (including W3SVC, that was "sweet").
Problem 2: After manually reconfiguring and restarting all apropriate services OWA site issues same as noted by Gerard, Sean and others. Active-Sync web services function fine. Just OWA was borked.
In looking at IIS 7 under the owa virtual directory there were two folders: 14.0.639.21 (initial gold bits) and 14.0.682.1. In looking at the ApplicationHost.config file location paths it still references 14.0.639.21. That can't be good. I'd have tried to fix this manually, but I figured there were some mixing of these paths.
Uninstalled RU 1. *Almost* everything works. Today I noticed that the EMC MMC fails and WinRM seems to be having issues. All are related to the OWA virtual Directory.
I'm gonig to try to reinstall and try deleting and recreating the OWA virtual directory.
Our E14 bits were the final bits available to the E14 TAP participants (R4-DFF - build 639-21). These are the RTM bits.