my pc keeps on crashing. it randomly restart and give a blue screen.

A problem has been detected and windows has been shut down to prevent damage to your computer.

DRIVER_IRQL_NOT_LESS_OR_EQUAL

If this is the first time you've seen this stop error screen, restart your computer. If this screen appears again, follow these steps:

Check to make sure any new hardware or software is properly installed, if this is a new installation, ask your hardware or software manufacturer for any windows updates you might need.

If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use Safe Mode to remove or disable components, restart your computer, press F8 to select Advanced Startup Options, and then select Safe Mode.

Technical information;

Stop: 0x000000D1 (0x000002A8, 0x00000002, 0x00000000, 0xFSDE6ADE)

RSC4USB.SYS - Address FSDE6ADE base at F5DA400, Date Stamp 437aa86d

I think it's because of the u.s. robotic that i'm using cus it only crash when i uses it.

the computer's spec

windows xp service pack 2
2.0Ghz
384 ram

Yes it is to do with your US Robotics Wireless

Go to Safe Mode (Repeatively press F8 function key on Windows Startup)
Select Safe Mode and log on to the Administrator Account

Go to
Start -> Run -> devmgmt.msc
And remove the US robotics driver

Restart

You will need to re-locate the US robootics driver again, on the net

i reinstalled the driver but it still happens.

ie a new updated driver

It is possible you also have a hardware conflict with other hardware on your computer.

If you have updated to the newest driver, then this may be the case.
Only option there is to purchase a new device instead of the US Robotics one.

Also it could in actual fact be faulty ( hardware wise) so again replacing to another (different one) will help