Vista - Boot Advanced Options - Number of Processors

**Brink** · 05-13-2008

How to Change the Number of Processors Used at Boot Up in Vista

...

Click here to read the entire tutorial

**Brink** · 08-31-2009

You're welcome Macavity, and welcome to Vista Forums.

jablake · 2 Weeks Ago

I have an HP Quad core and I only see "1 or 2" under the 'number of processors' in the System Config (MSCONFIG) utility. I have tried to get to my BIOS on start up but I cannot get in it . I have hit all the key and it won't go to the BIOS. Is ther another way to make sure the QUAD core is configured correctly?

**Brink** · 2 Weeks Ago

Hello Jablake, and welcome to Vista Forums.

Leaving the Number of processors box unchecked will also allow Vista to use all of your CPU cores by default after restarting the computer. You can verify this by looking under the Performance tab in Task Manager (Ctrl+Shift+Esc) to see how many CPU usage history graphs you have. You will have one per core.

Hope this helps,
Shawn

jablake · 2 Weeks Ago

Thanks, Shawn-
I unchecked the '# of processors' and after re-boot it shows all 8 cores.
Thanks for your help.

**Brink** · 2 Weeks Ago

You're welcome Jablake. I'm happy to hear that they are all back.

05-13-2008
Brink Vista x64 Ultimate SP2, Windows 7 Ultimate x64 25,940 posts	Boot Advanced Options - Number of Processors How to Change the Number of Processors Used at Boot Up in Vista ... Click here to read the entire tutorial
My System Specs

08-31-2009
Brink Vista x64 Ultimate SP2, Windows 7 Ultimate x64 25,940 posts	Re: Boot Advanced Options - Number of Processors You're welcome Macavity, and welcome to Vista Forums.
My System Specs

2 Weeks Ago
jablake Windows 7 64-bit 2 posts	Re: Boot Advanced Options - Number of Processors I have an HP Quad core and I only see "1 or 2" under the 'number of processors' in the System Config (MSCONFIG) utility. I have tried to get to my BIOS on start up but I cannot get in it . I have hit all the key and it won't go to the BIOS. Is ther another way to make sure the QUAD core is configured correctly?
My System Specs

2 Weeks Ago
Brink Vista x64 Ultimate SP2, Windows 7 Ultimate x64 25,940 posts	Re: Boot Advanced Options - Number of Processors Hello Jablake, and welcome to Vista Forums. Leaving the Number of processors box unchecked will also allow Vista to use all of your CPU cores by default after restarting the computer. You can verify this by looking under the Performance tab in Task Manager (Ctrl+Shift+Esc) to see how many CPU usage history graphs you have. You will have one per core. Hope this helps, Shawn
My System Specs

2 Weeks Ago
jablake Windows 7 64-bit 2 posts	Re: Boot Advanced Options - Number of Processors Thanks, Shawn- I unchecked the '# of processors' and after re-boot it shows all 8 cores. Thanks for your help.
My System Specs

Similar Threads
Tutorial	Category
F8 on boot doesn't bring up advanced boot options	General Discussion
Advanced Boot Options	Tutorials
Dual Xeon number of processors at boot issue	General Discussion
Advanced Boot Options screen help	Vista General
Help - pressing F8 doesn't take me to advanced boot options.	Vista General