Dirty Environment

Sometimes MDT deployments fail and leave the disk in a dirty (failed) state, whem you choose yes and the task sequence failes try the following solution.

1. Press F8 (opens a CMD window)

2. Unplug any USB drives or other mass storage devices - you should end up with just the internal hard drive left (CD/DVD drives don’t count here)

3. In the CMD window enter: DiskPart (launches the Disk Partitioning window)

4. In the DiskPart window enter: list disk (this will show you a list of discs available)

5. If all other drives were unattached then only 1 disk will be listed - note the number associated with the disk (most likely it will be ZERO)

6. In the DiskPart window enter: select disk # (where # is your disc number)

7. In the DiskPart window enter: clean (this will wipe the disk clean of all partitions and therefore clear your dirty deployment)

8. In the DiskPart window enter: exit (should close)

9. In the CMD window enter" exit (should close and reboot)