Skip navigation

JSI Tip 2700. My Volume set size is incorrectly reported?

When you create or extend a volume set, Disk Administrator appends autochk /x <drive_letter> to the BootExecute value at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager. If you prevent CHKDSK from running at the next boot, the volume set can become damaged, report an incorrect size, or refuse to ever use the newly allocated space.

To fix the problem, use Regedt32 and navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager Double-click the BootExecute value name in the right hand pane to open the Multi-String Editor. The first line should contain autocheck autochk *. Add a new line that contains autochk /x <drive_letter>.

After closing Regedt32, Shutdown and allow CHKDSK to run.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.