Windows uptime counter resets after like 7v 12h?

[Hipshot 0]

Heard that from a friend and I also heard that this was just in the earlier versions of windows 9x, like 95 and 98 (not SE).

[Christianb 8]

Hi what's 7v? Do you mean 7 Days?

Thanks,

Christian

[Hipshot 0]

heh sorry

 

I meant 7 Weeks and 12 Hours

[Christianb 8]

Hi HipShot that sounds like it would only be of issue to people running servers which you must be. I've never in my life made it that long without rebooting . Also do you know how to get the OS to reveal that? I know one of my utilities will tell me the uptime value, but can you get a it from a command prompt or something in Win2K?

Thanks,

Christian

[Hipshot 0]

acctualy Im not to run a server, im just going to test how long I can have my laptop online on irc before it hangs, its up to 7 days now, no slowdown so far...

 

You can see the time with sisoft sandra application and for example moo.dll, but im sure there are a promt cmd to use to, really dont know it, really would like to know it

[Marktait 0]

Too find the uptime simply type systeminfo in a CMD prompt, its nearer the top of the list of rubbish you get from typing this

[adamvjackson 0]

Microsoft's Uptime Utility

[Hipshot 0]

Quote:

Too find the uptime simply type systeminfo in a CMD prompt, its nearer the top of the list of rubbish you get from typing this

Silly of me, I know that command, just dint remember it when I started the thread...

the Q still stands though, will the counter resets itself after ~7weeks ?

[Xiven 0]

I'm fairly sure it affected WinNT, no idea if it was fixed in Win2k or WinXP though. Windows uptime is stored as a 32-bit number storing the number of milliseconds since it started. This means the maximum length of time it can go up to before resetting is:

 

(2^32) / (1000 * 60 * 60 * 24)

 

= ~49.7 days

 

Which is about 7 weeks and 17 hours

[adamvjackson 0]

The Windows uptime displayed will never reach 50 days. This is a deficiency of Windows, as the GetTickCount call (which is used to determine the uptime) returns the number of milliseconds since Windows was started as a 32-bit unsigned integer. This results in a maximum measurable uptime of 49 days, 17 hours, 2 minutes and 47 seconds.