Event ID: 3409
Source: MSSQL$...
Type: Error
Description: Performance counter shared memory setup failed with error -1. Reinstall sqlctr.ini for this instance, and ensure that the instance login account has correct registry permissions.
Event ID: 8313
Source: MSSQL$...
Type: Error
Description: SQL Server performance counters are disabled.
Resolution:
Grant read permission to account MICROSOFT$DPM$Acct (SQL2005 service
account)to registry key hklm\software\microsoft\windows nt\currentversion\perflib.