Bad me, summerising things again lol..
how do you make sure everything works? after you delete all the crap, if the cd burps or has a scratch, you're screwed. you can never go back to your previous os.
Maybe i should've said "better chance of it working properly, minus hardware difficulties". And hence why i've also advised backing up as you do before doing something as major as this.
xp does no such thing. it actually backs up your 98 os, in case you want to un-install xp and re-install 98.
Even so it backs up win98, but in essence you are replaceing the current folders that run win98 with those to run winXP (get it?), since XP has similar, but way different protocols, registry, etc.. to the 98. Especialy with SP2..
Unresolved issues being settings that you choose to transfer over to XP, which dont aggree with it, especialy program related issues. Of course, like anything drivers would most probably need updateing after switching OS's.
PC Power, not PSU. PC Power as in the grunt the system can provide or your overall specs of your system, such as: mobo, cpu, ram, storage mediums such as HDD (the core), then video/audio, Human Interface Devices, Optical drives etc. PSUs off course come into play after hardware is taken account for.
We arn't saying that a upgrade wont work, off course it does and is designed to, hence why MS makes Windows OS Upgrade Cds. Its an option. And i didnt see anything in our original post' about only one thing, just an opinion on what our experiences are regarding OS upgrades, nor does he care about a clean install. Its the same with RAM. You try to match things to get the most out of it, but it doesnt mean that two different RAM modules won't work.
Off course, if it comes down to the troubleshooting from an Upgrade or Clean install, if need be, then when the time comes then well we'll help getting it working..