Cannot start Microsoft Outlook. Unable to open the Outlook window. The set folders could not be opened. The server is not available.

I do have the same problem. I did remove all the profile at first but it doesn't work.

But lucky what I did to solved the problem by using this step :
1. Run Outlook.exe" /resetnavpane
2. Start > Regedit
Locate HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem
Delete the Profiles key under the Windows Messaging (Subsystem) key.
3. Then use CCleaner to remove unwanted regedit.
4. And of course you need to reboot your PC to apply any changes in regedit.

PS: recommended to backup regedit. In my case it works very fine \:)/