Problem: after installation of Win XP, there are problems with drivers
First, if it is installed with XP with latest patches and updates, there are no problems with modem and audio. But if all drivers that are found on HP.COM are installed, then miniport #3 appears with exclamation point (!) and it cannot be uninstalled. So, when hdd is formatted and installed all over again with basic Win XP Service pack2, there is no miniport error at all but there is instead a problem with audio and uknown driver. Plus, not all drivers from Hp.com-support web site should be installed - in order to avoid phantom miniport driver. To resolve Audio driver - first there must be installed KB888111XPSP2.exe patch (for some reason not found on microsoft.com but via google resources) - in order to resolve error "HDA AUDIO BUS DRIVER". And then instal official audio driver found on hp.com. Unknown driver - it is quick launch driver, keyboard-filter_01. Also found on hp.com
Problem: Although toner FX100 is in printer/fax/scanner Canon MF4100 - it displayes toner error "insert toner catridge, lift cover etc"
Solution: First remove all papers stacked for printing, then remove toner catridge and of course return toner back inside. One paper was in printer set to print - it should be removed, somehow it made canon to think that there's no toner.
Problem: PC freezes 1 minute after entering windows login, even in safe mode
Symptoms: Memory is ok (mem test passed ok), graphics card changed, modem and CDs disconnected - pc still freezes soon after entering user login. Task manager did not froze - everything within explorer.exe did. End task on explorer.exe and enetering explorer.exe on run worked, but sometimes that also completly froze after cca 10 minutes. Safe mode worked ok for 15 seconds - 2 minutes and then also windows have frozen. Task manager worked mostly ok in safe mode. Start-up items of non-windows files in msconfig was unchecked.
Solution: HDD must be taken out of PC and attached to another PC as secondary drive. Scan with at least 3 online scanners (kaspersky, ewido, f secure, trend micro etc...), twice! In this case, PC worked fine after these were deleted: