Error: windows drive not ready exception processing message c00000a3

While booting to windows it shows windows drive not ready exception processing message c00000a3 error. If we open any folder,any option or any process ,the same dialog box continuously appearing on screen.

Operating system: Windows Vista

Solution:

1. Click Start, and type “regedit” to open registry editor.Press Enter.

2. In the Registry Editor, on the left pane, navigate to the following key by expanding the plus sign (+):

HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\Control\Windows

3. Right click on "Windows", click "Export", and then save it to the C:\ drive. (In case we need to undo the modification, we can double click it to restore the registry key)

4. Double-click on the key ErrorMode, and set the data value to 2.

5.Restarted the computer.