SOLUTION WSUS 3. SP2 needs repairunable to reinstall. I had WSUS setup on a window server 2. R2 x. 64 server. It was having trouble and I was unable to repair so I decided to try and reinstall and start new. I used the following links to attempt uninstall of WSUS 3. Hi All, Looking further into our Exchange 2010 setup due to potential virtualisation, Ive noticed that the replication of the mailbox database between the 2 DAG. Satheshwaran Manoharan is an Microsoft Exchange Server MVP, Publisher of CareExchange. in SupportingDeployingDesigning Microsoft Exchange for some years. SP2 and windows internal database. WS. 1. 0. aspxhttp blogs. Now the role still shows up in server manager and I am unable to remove the role. I restarted the server and I am still unable to remove. Microsoft Exchange Server 2010 brings a new set of great technologies. No surprise many are excited and looking forward to plan and deploy this new messaging. I also tried downloading WSUS 3 SP2 and running the installer, it fails. The log it provides is below. Success MWUSSetup Validating pre requisites. Error MWUSSetup WSUS is outdated. But this will not block setup Error 0x. The operation completed successfully. 2. Success MWUSSetup Report. Viewer is not installed on this machine. Success MWUSSetup Report. Exchange Server 2010 Sp2 Installation Files For AvgViewer is not installed on this machine. Success MWUSSetup Initializing installation details. Success MWUSSetup Skipping Asp. Net install since not running on win. Success MWUSSetup Installing w. Yukon using ocsetup. Exchange Server 2010 Sp2 Installation Files For JavaSuccess MWUSSetup Installing Windows Internal database using ocsetup with command line as ocsetup WSSEE quiet norestart2. Error MWUSSetup The process ocsetup WSSEE quiet norestart returned error 0x. Error 0x. 80. 07. Fatal error during installation. 2. Error MWUSSetup Exec. Cmd failed Error 0x. Fatal error during installation. 2. Error MWUSSetup Install Windows Internal database Failed to execute ocsetup WSSEE quiet norestart Error 0x. Fatal error during installation. 2. Error MWUSSetup CInstall. Driver Perform. Setup Installation of w. Yukon failed Error 0x. Fatal error during installation. 2. Error MWUSSetup CSetup. Driver Launch. Setup Setup failed Error 0x. Fatal error during installation. 2. Error MWUSSetup Do. Install Wsus setup failed Error 0x. Fatal error during installation. I have searched all over the internet looking for a way to reinstall WSUS but I am making no progress at this point. How do I get WSUS installed againI am assuming I will need to manually remove what is left of windows internal database and WSUS but I have found nothing explaining what reg keys to modify and what files to remove.