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Exchange 2010 IIS Sites Missing No Default Web Site

One client installed Office Web Apps on Exchange 2010 server. After this the Exchange became broken. Can’t use EMC or Shell, can’t connect to Exchange through Outlook or OWA.

When I connected I found a few Exchange services were not started. Started them but still no go. Checked the IIS and found that the Default Web Site was not showing up. Searched online on how to fix IIS. Most commented on removing and rebuilding Default Web Site. Found an easier solution here at the bottom. Basically I backed up the IIS config (administration.config and applicationHost.config) files from

I then copied a backup of these files from C:\inetpub\history. (Picked one of the folders that had a date earlier when it was working) and put them in the C:\Windows\System32\inetsrv\config.

I then ran the IISRESET and the Default Web Site was back in IIS and everything was working. I did have to go into EMC under server and reassign the IIS to the certificate for external OWA to work.


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