Windows crashes in 49.7 days .... !!!

gaurav_indian

International Coach
Joined
Aug 6, 2005
Online Cricket Games Owned
I got this from another forum.


Do you know about this?

Will Windows work continuously for more than 49.7 days?

Here is a bit of information, which may surprise you all. Windows crashes automatically if you don't switch off the machine for 49.7 Days. Microsoft accepts this. Do you know why?

In Windows the Virtual Machine Manager (here after referred as VMM) is responsible for creation, execution, monitoring and termination of virtual machines. This VMM, which is a 32 bit, protected mode operating system entity, provides a number of system services at chip level. One of these services is "Get_System_Time". This particular service loads the EAX register with the time in milliseconds since Windows started on that machine. This service is accurate to 1 ms. EAX is a 32 bit register in Intel 386 Processor onwards.

So the maximum number of milliseconds it can hold is
(232)-1 = 4294967295 milliseconds = 4294967.295 seconds = 71582.79 minutes = 1193 hours = 49.7 days.
So after 49.7 days the EAX resets to zero. Most of the Drivers use this Time Service to keep track of the Timeout of various services they provide. So after 49.7 days the drivers cannot use the Get_System_Time function of VMM and they crash taking the OS along with.

SOURCE:
Please check this knowledge base article 216641:
http://support.microsoft.com/kb/216641/EN-US/
 

IloveGilly

News Team Member<br><a href="http://www.planetcric
Joined
Jan 4, 2006
Location
Australia, Sydney
Online Cricket Games Owned
Anyone willing to try it?

I can't even last a week without my comp taking a power failure!
 

Ste

Executive member
Joined
Jun 27, 2002
Location
Southport, England
Online Cricket Games Owned
Yes it would have to have been changed for Windows NT, 2000 and therefore XP as these can be used as servers which would need to be running continuously.
 

Users who are viewing this thread

Top