While trying to install SQL Server 2012 as a named instance I got the following error in the error log:
Exception type: Microsoft.SqlServer.Configuration.Sco.ScoException
Service ‘SQLBrowser’ start request failed.
HResult : 0x84bb0001
FacilityCode : 1211 (4bb)
ErrorCode : 1 (0001)
Feature = SQL_Browser_Redist_SqlBrowser_Cpu32
Timing = Startup
DisableRetry = true
After reading this article I suspected the problem might be due to a network activity monitor installed on the machine.
Uninstalling the activity monitor was not an option. However, SQL Browser is not needed if there is only a default instance running on the machine and since no other instances were running on the machine I decided to install SQL Server with one default instance.
This work-around allowed install to continue successfully. I may need to re-address this issue if I need to install a second instance of SQL Server on this machine.