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Disabling a driver that is in an UpperFilters/LowerFilters can render Windows unable to boot. RRS feed

  • Question

  • On another product forum a user was advised to turn off all product services and drivers using Autoruns. One of the drivers was listed in a couple UpperFilter registry keys and thus Windows became unbootable.

    The solution involved booting with WinRE, running regedit and navigating to the Windows folder to load the registry hive where the driver could be reenabled.

    When a driver is disabled, shouldn't Autoruns remove it from the UpperFilter or LowerFilter keys... or at least warn that it is there?

    Friday, January 31, 2020 5:43 PM

All replies

  • Simple workaround is to run FLTMC and take note of the driver you shoud not disable..

    C:\WINDOWS\system32>fltmc

    Nome filtro                     Num istanze     Altitudine   Frame
    ------------------------------  -------------  ------------  -----
    bindflt                                 1       409800         0
    CldFlt                                  1       409500         0
    SysmonDrv                               6       385201         0
    PROCMON24                               0       385200         0
    WdFilter                                6       328010         0
    storqosflt                              0       244000         0
    wcifs                                   2       189900         0
    FileCrypt                               0       141100         0
    luafv                                   1       135000         0
    npsvctrig                               1        46000         0
    Wof                                     4        40700         0
    FileInfo                                6        40500         0

    HTH
    -mario

    Monday, February 3, 2020 7:54 AM