I was working on my laptop when I got this blue error screen. The error message was "KERNEL_DATA_INPAGE_ERROR". So I restarted the laptop, it took a long time to boot up, and before it could fully bootup, I got another blue screen error. This time the error message was "PAGE_FAULT_IN_NONPAGED_AREA", something was wrong in file PartMgr.sys.
I restarted the laptop again, this time it wouldn't go past the initial bootup screen (with the company logo and 'Press Esc to enter Setup, Press F12 to...'). I see the CPU light is on constantly, but it just stays on the same screen. I waited for more than 30mins, it wouldn't bootup.
How can I fix it? I did not install any new hardware or software. When the error occured I had Firefox and Visual Studio open. The laptop is Compaq V2000 series, Pentium M processor, with Windows XP Pro.