Here is new instructions
Do not apply this tweak if you are using earlier windows than vista. (Haven't try but heard that its not gonna effect.
Press windows button
Edit, Find, PriorityControl
Right click on white area and choose new
CHOOSE DWORD 32 BIT
Name new file to IRQ8Priority
Doubleclick IRQ8Priority and change value to 1 and be sure that its hexadecimal
What it does?
Recommend giving the System CMOS or the video card priority. The System CMOS generally has an IRQ setting of 8, and giving it priority enhances the I/O performance of the system. Giving priority to the video card can increase frame rates and make AGP/pcie more effective.
ITS NOT GONNA BLOW UP YOUR COMPUTER.
NOTHING TO DO WITH WINLOGON like someone thought it was.
IF you think it will blow it up.. don't use it then. This tweaks are made by professional. NOT ME.
REBOOT your computer
This might not help to all.
Try this at your own risk.
You can also try other IRQ's.
But first type msinfo32.exe to your windows search and search from there "Hardware resources/IRQs. IRQ13 is numeric data processor. It will speed up a littlebit. DWORD priority 2