On installing the latest windows patch on my NT4
workstation which has service pack 6a and all other
patches, the machine would not boot up properly. Each time
it reached the log in screen the mouse and keyboard was
disabled making it impossible to log in. Error message one
or more drivers failed to start.

There seems to be no way around this so the new patch has
got me well and truly buggered, unfortunatly I installed
it on 2 machines before I realised the problem.

Please let Microsoft know this and offer a solution if you
can.

Hi,

Most likely it was the application of the Post Service Pack 6a Security Rollup
(SRP) that actually caused your problem. To repeat my standard answer to this
question:

This question is constantly asked - the frequency of people encountering this
particular problem has skyrocketed in the last year or so because of the all the
Virus/Worm scares and everyone finally deciding to do something about plugging
the multitude of security holes left in Microsoft OSes (NT 4.0 included)

To answer - by any chance did you have a copy of Microsoft Intellimouse prior to
V3.2 installed on the machine ? There is known issue of the 'POST SP6a Security
Rollup (SRP) Q299444' breaking the mouse and keyboard when it is installed under
these conditions.

Have a look at Microsoft Knowledgebase Article 305462 - Mouse and Keyboard Stop
Working After You Install the Windows NT 4.0 Security Rollup Package, I think it
will address your particular situation. They offer several possible fixes for
the problem, depending on what type of file system your boot partition is. (ie:
the one that has the /WINNT folder on it)

I managed to cure my particular problem by remote logging in over our LAN and
manually replacing the effected files - fortunately they weren't in use because
they had failed to start. (I think you are in the same position - hence the 'one
or more services failed to start' message when the machine boots) Once I got a
working keyboard and mouse again I properly removed Intellimouse V2.0 using
Add/Remove programmes and replaced it with a later version (V3.2 or later is ok)

Calvin.