Change your product key for Office 2007 with out reinstalling
by errr on Jan.06, 2010, under Microsoft
So today I was setting up a new laptop for one of our employees. I went to activate his copy of Office 2007 and was told that I had already activated this copy to many times!! Oops, that is my bad for having such a messy desk that I grabbed the wrong copy of office and used the wrong key. No big deal I think to my self so I call to activate over the phone. While talking to this script reader he tells me that my copy is over activated and now I need to reinstall using this other disk (same version of office same everything..) I get a bit pissed cause I have better things to do with my time then totally reinstall Office just to change a simple key. I tell him how that is crazy and that there just HAD to be a way to do this with out a reinstall. The “tech” tells me that there is no way. I tell him he is nuts and how he is lazy and should learn more about his job. So off to regedit I went. I dug though HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0\ since it was the biggest number. Mine also had an 8.0 and an 11.0. While digging though there I see “Registration”, I open it then while going though there I found something called DigitalProductID and something else called ProductID. On a whim I decided to just delete these key=>values so I right clicked on them and hit delete. Next I closed regedit and opened up Outlook. Guess what it asked me for 
thats right!! It asked me for a product key. I gave it, then Office activated with no issues… So this is to you, jerk at M$ who tried telling me this was not possible!! IN YO FACE!!!
January 7th, 2010 on 2:47 pm
Just a shout on this. I looked on Vista and these steps do not work, so this may only work on XP. I was using XP Pro
February 21st, 2010 on 8:29 am
HAHAHAHAHAHA STUPID RETARDS AT MICROSOFT
March 5th, 2010 on 8:14 am
U retard not stupid Microsoft, if they tell you yanks go into the registry and delete things you will delete the wrong thing and your system comes crashing down, Corrupt registry = Dead windows then you would want to hold Microsoft liable for recovery costs.
I believe it is called risk management you anonymous freak
March 19th, 2010 on 3:02 pm
If you remove SETTING A after they said to remove SETTING B and now your system is hosed its your fault.. And even more your fault for not having a backup of the reg before you do it. But for them to say it is impossible to do with out a total reinstall when all you need to do is change the product key.. well thats just annoying, and something people like my self have no time to do.