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like, how about making it count down 3600 seconds to make sure that I have time to tell it to take a hike? How does it know to wait for precisely 10?

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up vote 3 down vote accepted

Answer here


  1. Start Registry Editor (Regedit32.exe) and locate the following subkey:
    \HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager
  2. Add the following information:
    Value Name: AutoChkTimeOut Data Type: DWORD Value: The value in units of seconds (for example, a value of 60 equals 1 minut

The autochk.exe count down time is controlled by the following registry entry:
\HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager \AutoChkTimeOut

If the entry is not found, the default count down of 10 seconds will be used. If it is set to 0 second, there will not be any count down. If it is set to more than 3 days (259,200 seconds), the default value will be used.

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yes, that worked fine for me on Windows 7. thanks – EndangeringSpecies Mar 7 '12 at 16:10

Looks like there is a registry entry that controls it.

Modifying the Disk Check Autochk.exe Time-out (Scandisk Delay) Value from 10 seconds to 3 Seconds

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager]

That info is for XP, it might work on 7. Have not tried it myself.

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