Agent service does not start (4038853)

The disk that holds the C:\ volume may be too busy to allow the agent to start.

To verify that disk activity is the problem:

1. Start Task Manager. You can do this by typing Control-Alt-Delete and selecting Start Task Manager, starting it from the start menu, if available, or by typing taskmgr in the Run box.
2. Click on the Performance tab
3. Click on the Resource Monitor button
4. In Resource Monitor, click on the Disk tab.
5. Expand the Storage heading by clicking on the down-pointing arrow.
6. Under the Storage heading, check the value under the Disk Queue heading. A value greater than 1 or 2 will cause a serious degradation of performance on the C: volume and can prevent the service from responding to start command properly.

If any disk regularly exhibits a high queue depth, there may a problem somewhere. This could be because there are too many volumes on the same physical disk, the storage is simply not fast enough for the work it's trying to do, or some program (SQL Server, for example) it just very busy with an extended task. The solution will depend on the cause of the load. It may be necessary to put different volumes on separate physical disks, use faster disks, or move databases to their own disks.