How to Disable the Quick Scan in Symantec

Written by joshua benjamin
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Every time you update your Symantec Antivirus virus definitions, the program runs a "DefWatch Quick Scan." This can become an annoyance if you do not wish to spend the time waiting for the computer to perform the scan, and it can be especially irritating if you update your virus definitions frequently. It is possible to disable the quick scan, but you will have to edit the Windows Registry in order to do so.

Skill level:
Moderately Easy


  1. 1

    Open the Start menu and type "regedit" into the Windows Live search box. This will launch the Windows Registry Editor.

  2. 2

    Use the left window pane to navigate to the following registry key:

    HKEY_LOCAL_MACHINE\Software\Intel\Landesk\VirusProtect6\CurrentVersion\LocalScans\Defwatch QuickScan Options

  3. 3

    Double-click the "ScanBootSector" value in the right window pane to bring up the value's properties box. Select "Value" and change the number to "0." Click "OK" to save the change.

  4. 4

    Repeat Step 3 for the "ScanLoadPoints" and "ScanProcesses" entries, then exit the Registry Editor.

Tips and warnings

  • Even after completing the above steps, the Quick Scan feature may still run every time you update the virus definitions, however, no files will be scanned and the Quick Scan will end within a few seconds.

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