MobileRead Forums - View Single Post - Calibre not launching. NUL file missing in windows

DNSB · 10-06-2022, 12:29 PM

A couple of quick questions.

If you open a command prompt and type:

Code:

echo hello > nul

and hit enter, does it just return to the command prompt or do you get an error message? If you get an error message, try the next suggestion.

If you run regedit and look at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servi ces\Null", what is the value for the Start item? It should be set to 1 for normal startup. If it is set to 4, the device is disabled.

As usual, you will need to restart after making any changes for them to take effect.

10-06-2022, 12:29 PM	#2
DNSB Bibliophagist Posts: 47,022 Karma: 169810634 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	A couple of quick questions. If you open a command prompt and type: Code: echo hello > nul and hit enter, does it just return to the command prompt or do you get an error message? If you get an error message, try the next suggestion. If you run regedit and look at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servi ces\Null", what is the value for the Start item? It should be set to 1 for normal startup. If it is set to 4, the device is disabled. As usual, you will need to restart after making any changes for them to take effect.