[time-nuts] Serial Ballpoint issue again

David C. Partridge david.partridge at perdrix.co.uk
Tue Aug 11 13:57:00 EDT 2015

Tahnks to John Lofgren:

> Click on start --> In the search box, type in regedit Registry editor 
> windows opens... Navigate to the location:
> --> SYSTEM
> --> CurrentControlSet
> --> Services
> --> sermouse
> In the right hand, you'll see stuff like:
> (default)
> DisplayName
> etc. etc. etc.
> There should be a "dword (32bit) value" titled:
> "start"
> Set the value of this to: 00000004 

David Partridge 
-----Original Message-----
From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Martin
Sent: 11 August 2015 17:25
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Serial Ballpoint issue again

David C. Partridge wrote:
> I just installed Windows 10 (yes I know how rash), and now my 
> Thunderbolt is being detected as a Microsoft Serial Ballpoint Mouse 
> (yes, just like before inder Windows 7).  I had set something up on 
> Windows 7 in the boot.ini to stop this, but for the life on me I can't
remember what it was.
> Please could someone who's got this setup on Windows 7 remind me what 
> the magic incantionation is.

The boot option /NoSerialMice should do the trick. See:

However, unklike mentioned in the above article, you can't just edit a
boot.ini file in current Windows versions. Instead you have to run the
bcdedit utility shipped with Windows. See:

Haven't tried this under Windows 10, yet, but hope it still works.


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