Comments on: Convert and Upgrade Windows XP Home to Professional Without Reinstalling

By: Luiz

Luiz — Sun, 08 Nov 2009 23:50:41 +0000

It worked smoothly on my eeepc 1000h with asus’ oem m$ xp home.
Nice stuff you got here. Congrats.

By: LazyAndroid

LazyAndroid — Thu, 05 Nov 2009 23:15:47 +0000

Ok, so this is for illegal versions of XP, but I just got a second hand pc with XP Home and I think it is a legal version (I got it as a gift from a lawyer company wich deals with copyrights and stuff). And I happen to have an original Microsoft legal CD of XP Professional somewhere in my room, I just need to find it.

Is there any way to upgrade it legaly, with the true XP Professional without reformating? I also got Microsoft Office with the new PC and I don’t want to lose that on the reformat as I don’t have a legal copy of MS Office and I would rather keep as much legal programs as possible…

Hum, I mean, I always keep everything legal, don’t you think I have an illegal copy of Photoshop or anything, or even the entire Adobe Creative Suite 4 for everyday professional use. No, no, of course not.

By: Matthew H

Matthew H — Fri, 30 Oct 2009 19:48:03 +0000

Ok, so I used this trick on my desktop when I had XP Home, but I just installed Windows 7 Home Premium and I’m wondering if this could be adapted for changing Windows 7 Home Premium to think it is Pro or Ultimate? Any ideas would be appreciated.

By: lx

lx — Fri, 23 Oct 2009 10:49:42 +0000

Nice trick!
It realy works with WInXP Home SP3 !

By: Raymond

Raymond — Wed, 21 Oct 2009 16:56:41 +0000

i don’t think this will work on sp3. cause what happens is system freezes up on restarted. also editing registry keys doesn’t work… it’ll revert back to original values???

By: alex

alex — Thu, 15 Oct 2009 19:27:10 +0000

EDIT ON THAT LAST POST: when i said clear the registry i didn’t mean clear the registry like whipe it clean i just meant clear the registry key for ProductSuite.

By: alex

alex — Thu, 15 Oct 2009 19:24:05 +0000

Thanks a lot man, took me a few tries, at first it was giving me the error message I couldn’t erase the registry key, then tried to just clear the registry, rebooted & it still wasn’t working. But after like the third try I saw that they added controlset006 to the registry (previously just controlset003 was highest), changed the settings in control set 6 and vuala! It’s now recognized as xp pro, thanks a lot dude!

By: pin

pin — Sun, 04 Oct 2009 20:47:22 +0000

Restored System and got back to normal Home edition.

By: pin

pin — Sun, 04 Oct 2009 20:07:07 +0000

The trick is useless, local security policy console did not show up.

By: Humza Bobat

Humza Bobat — Tue, 29 Sep 2009 20:30:07 +0000

It really works (on wmware workstation)

By: cikgu azman

cikgu azman — Thu, 10 Sep 2009 15:29:29 +0000

you are genius!!! worked on my win xp home at first try. but it’s better to blank the value of product suite instead of deleting it.

By: Colin

Colin — Wed, 09 Sep 2009 19:45:56 +0000

Wow, thanks so much!

By: dammit

dammit — Mon, 24 Aug 2009 05:11:16 +0000

This worked great and allowed us to use remote desktop on my wife’s pc. However, shortly after this change the system installed SP3 and afterwards we couldn’t access the system. I tried a solution to use recovery console to overwrite the necessary files but we still got the same error. I restored back to a system restore point to get access to the machine, but when I try to reverse the changes it won’t allow me to. Recreating the ProductSuite key is not permitted -it gets deleted as soon as you exit regedit. I was even clever and saved the reg configuration to I could restore the key back when I initially did this hack but it too is not allowed.

In all not a big deal but something to keep in mind for those looking to try this. Either make sure you have sp3 already installed, or live without auto update (minor updates work fine)

By: Paul

Paul — Tue, 18 Aug 2009 04:12:30 +0000

Woowww Thanks!!

By: Jeffrey

Jeffrey — Fri, 14 Aug 2009 13:49:39 +0000

I didn’t think yhat this would work, but i wanted professional to work certain software, so i tried it. Now my computer reads as professional. Thank you

By: hurlain

hurlain — Thu, 13 Aug 2009 20:01:43 +0000

hey..it worked…thanx…bt it says I have to activate windows again in 27 days….didn’t get that one…but thanks..