I once had a motherboard battery fail on me. I got a second hand box, plugged my Win98 HDD into it, and was up and running in no time.
The same thing happened to a friend running XP. It cost him time and money to pay a guru to rescue his data, wipe his HDD and reinstall it in a new machine, because you're NOT ALLOWED to swap YOUR hard drive from YOUR computer to YOUR other computer without Mr Gates' permission. Quite often, you're not allowed to reinstall the software after a crash without touching your forelock, and I believe with post-XP software, you don't even get a physical copy - after you've given MS your entire life-history, you have to download a virtual copy which prevents itself from being sub-mastered, and is only downloadable for ~3 years before it becomes 'unsupported' and you have to pay another £500 for the next version - and it wouldn't surprise me if it stops working due to a computer ID error if you replace your mouse...
As I wasn’t there I am reluctant to speak ill of this ‘guru’ but I am surprised.
First off, if it was the CMOS battery on the motherboard, just buy a new battery for a few quid and your machine is working again. No need to move the HDD or recover data or anything.
Secondly, I have had to recover data, perform hardware upgrades, and/or reinstall the OS a number of times for friends, family, my landlord, and neighbours over the years (for various reasons) and never had any problems. With retail versions you still have a physical disk (CD or DVD). With OEM versions you used to get a physical disk but the trend now is to make a recovery partition on your HDD instead (first thing I do is burn that to disk and repartition to recover that small amount of space) ... that’s not MS, that’s the OEM builder. I believe there is a download from MS option but I've never tried it. The most I ever charged was £30, but I usually did it for free or a home-cooked meal.
Admittedly I have run into cases where one user cannot access another user’s files. That’s built in security for your protection (not MS’s). And if you use common data areas and have backups then this is a non-issue.
When I got rid of my last XP desktop, I had over the years replaced everything on it (motherboard, CPU, memory, graphics card, and case) ... except the soundcard without any problems.
Windows XP is still supported (albeit in a limited capacity and only for another year because it’s so old) and you can pick up a legitimate copy on eBay for a lot less than £500 (try £20). In fact I see PC World has Windows 7 *Ultimate* listed for £190. And the only thing I’ve ever needed to tell MS in regards to installing Windows was to go online and click ‘register’: this asked NO questions, it just confirms the licence key you used is legitimate.
As I said I am reluctant to speak ill of this ‘guru’ but if he was the source of your information then it sounds like you’ve been misled. All your concerns belong on Snopes.com.
And don't get me started on the darn thing inserting capital letters all over the place because Mr Gates thinks I'm too stupid to know when to use capitals...
Sounds like you’re talking about the AutoCorrect feature in Word (or another Office program) which is off topic. But if it is then AutoCorrect can be adjusted to turn off that aspect, or turned off in its entirety.
I've been running Linux for over a year, and it's never hung up, never crashed, never clogged up, never stopped in mid-backup, never told me my computer has performed a fatal error...
Bliss.
Ditto for me using Windows 7 Ultimate. Except I wouldn't bother saying "bliss" as it's what I've come to expect from Windows. Admittedly I did have an occasional problem with Vista for awhile when I was using beta drivers, but hey ... beta drivers.