Event ID 4 may be logged after you convert a hard disk to a dynamic hard disk on your Windows Server 2003-based computer

After you convert the system hard disk to a dynamic hard disk on a Microsoft Windows Server 2003-based computer, the following event may be recorded in the event log:

Source: VDS Dynamic Provider 1.0
Type: Error
ID: 4
Description:
The provider failed to load the disk into the cache.
Disk: \Device\Harddisk1

This problem occurs if all the following conditions are true:

• You convert the system hard disk to a dynamic hard disk. For example, you follow these steps:
  1. You start the Management Microsoft Management Console (MMC) snap-in.
  2. You click Disk Management, click Disk 0, and then click Convert to Dynamic Disk.
• Immediately after the conversion of the system hard disk begins, you convert another hard disk that is on your computer to a dynamic hard disk.

Microsoft is researching this problem and will post more information in this article when the information becomes available.

This event is logged because of a problem that occurs when the system hard disk and the second hard disk are converted to dynamic hard disks at the same time. However, the problem is resolved after both volumes are mounted when you restart your computer. Both of the hard disks are successfully converted to dynamic hard disks, and you can safely ignore the event that is logged.