Google says:
Follow the steps below to fix the problem:
1. Start -> Run -> regedit.exe
2. Navigate to My Computer > HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\EventLog
3. Right click this key, select Permissions, and grant the ASPNET account read/write permissions as described above. Note that for the "inaccessible" logs (ie. Security, Virtual Server), you'll also need to grant read access, as permissions have been set to not inherity from the parent key.
4. Restart IIS (start -> Run -> iisreset)
5. Go in Control Panel -> Administrative Tools -> Computer Management -> Local Users and Groups
6. Select Administrator Group -> Right Click -> Add to Group Users "Network Service".
Link referred.[
^]