Q811493 Update

[Mike Olsen]

I allowed Windows XP to auto install the Q811493 update
which said that it would fix a security vulnerability in
the windows kernel. After which my computer ran
increadibly slow, frequently freezing or pausing for up to
a minute for pretty much any programs I ran. I removed
the update and things seem to have returned to normal. Do
I really need this update? Are their known bugs with it?
Are there any workarounds or fixes for it?

[Torgeir Bakken (MVP)]

Mike Olsen wrote:

> I allowed Windows XP to auto install the Q811493 update
> which said that it would fix a security vulnerability in
> the windows kernel. After which my computer ran
> increadibly slow, frequently freezing or pausing for up to
> a minute for pretty much any programs I ran. I removed
> the update and things seem to have returned to normal. Do
> I really need this update?

No.

The 811493 fix is not critical really, it is rated as "Important" only by MS.

More here:

http://support.microsoft.com/default.aspx?scid=kb;en-us;811493
http://www.microsoft.com/technet/security/bulletin/MS03-013.asp

e.g. this:
"For an attack to be successful, an attacker would need to be able to logon
interactively to the system, either at the console or through a terminal
session."

I am not going to install this fix on any computer...


> Are their known bugs with it?

Yes, the one you have experienced, slow running


> Are there any workarounds or fixes for it?

Turning off your AV real-time file protection might fix it, but I would say it
is much better to remove 811493 than to disable your anti-virus software!


--
torgeir
Microsoft MVP Scripting and WMI, Porsgrunn Norway
Administration scripting examples and an ONLINE version of the 1328 page
Scripting Guide: http://www.microsoft.com/technet/scriptcenter