Laptop seems to max out at a disk read throughput of 2.4 MB/s. Tested using HD Tune. Same speed in safe mode.
However, when I boot into the Mini XP Mode of Hiren's BootCD, I am able to get ~60MB/s with HD Tune. I still haven't tried removing the disk and trying it in another computers.
Also, Sysinternals Process Explorer (procexp.exe) crashes soon after starting the program. Not sure if something is detecting it and killing it.
I've messed with the Page File, ran ComboFix, ran MSE, ran GMER and Rootkit Revealer and didn't notice anything (not that I'm an expert at interpreting the results). I've also defragged the disk, though I didn't expect that to help at all. I'll probably try chkdsk and MBAM next.
Does anyone have any ideas on what could cause this? I initially thought it would be an inefficient rootkit, but I haven't found one. I've looked into bad drivers, but I haven't noticed anything yet. Let me know if any other info is needed or if I should try something. Thanks.
Dell Inspiron 6000 Laptop from ~2005
Windows XP Professional SP3
Intel Celeron M, 1.50 GHz
Western Digital 80GB Hard Drive, 5400 RPM, PATA 100MB/s, (WDC WD800BEVE)
Edit #1 - 2012/09/29 12:33p
Ran a chkdsk surface scan and no improvement. Removed the HD and attached it to a USB 2.0 to PATA adapter. Get ~30MB/s hooked up to a different computer through the adapter.
Also ran MSE and Trend Micro Housecall while it was hooked up through the adapter.
I'm leaning towards just re-installing Windows at this point.
Edited by Veraiste, 29 September 2012 - 12:38 PM.
Moved from XP to Internal Hardware - Hamluis.