Run Chkdsk

To aid in Windows, file system, or hard drive failure prevention or early warning, it is recommended that you run Chkdsk periodically and reinstall the supported service pack each time a software change is made to the system.

Chkdsk is Windows' built-in file system error detection and repair utility. Running it scans the physical drive surface, checks each file, and looks for problems on the hard drive. Run Chkdsk periodically to safeguard against data loss.

Running Chkdsk includes restarting a Windows workstation. Before performing this procedure, make sure of the following:

All DeltaV applications on the workstation are closed.
Your process is either properly shut down or being controlled by another node.
You have adequate time to complete the procedure.
If you are performing this procedure on a ProfessionalPLUS workstation, close all of the DeltaV Engineering Tools on all workstations on your DeltaV network.

If you are unsure about any of the above requirements, call Technical Support.

To run Chkdsk, perform the following procedure:

Click Start → Programs → Accessories → Command Prompt.
From the command prompt, enter the following:
```
CHKDSK c: /f /r
```
A message appears stating that Chkdsk will run the next time that the system is restarted.
Restart the workstation.
Upon restart, during the blue screen portion of the process, Chkdsk will run. Chkdsk can take five minutes or longer if problems are found on the drive.
Once you are finished, log on to Windows.
Click Start → Settings → Control Panels → Administrative Tools → Event Viewer.
If the top line of the Event Viewer windows does not read, "Event Viewer - Application Log on \\computer name", click Log → Application.
An entry labeled Autochk appears in the log that correlates to the last boot process. Double-click the entry to view the results of the Chkdsk.
If no errors are reported in the log, you are finished. If errors are reported in the log, perform this process again.
If an error occurs the second time you run Chkdsk, you might have a hard drive media problem. Call Technical Support immediately.

If no errors occur the second time you run Chkdsk, Chkdsk has successfully corrected any problems it found.