View Full Version : Win 7 - from Ultimate to Prof

bk T
13-09-2015, 11:09 AM
Friend bought a used laptop with Win7 Ultimate installed; when he brought it to show me yesterday, I suspected that the copy of Win7 Ultimate is not genuine as the COA sticker at the bottom is Win7 Home Premium.

Now, is it possible to downgrade Win7 Ultimate (installed) to Win7 Home Prem without having to reinstall the OS so as to make it legitimate? Say, by changing the Product key?

13-09-2015, 11:53 AM
It is quite possible that the machine has been upgraded and the sticker has not been changed.

13-09-2015, 12:58 PM
Go to Control Panel/System. It should have a Microsoft water mark with the ID number and "Windows is activated".
Another way to check is Start button, type CMD which will open the Command panel, type in slmgr/xpr press Enter. This should display the status of activation, ie 6 months, permanent etc. If it does updates from Microsoft, and also runs Microsoft Security Essentials it has been accepted by Microsoft so don't worry about it.

13-09-2015, 01:21 PM
Could possibly be pirated. Just bcause it shows its activated and updates doesn't mean its legit.

Without saying how, :nerd: theres ways to to take a KMS key and fool Microsoft servers into thinking the OS is a full version that will activate and update.

You cant downgrade from the version installed to the Home by changing the product key.

One simple way to check if its legit or not, is download a key finder, something like http://www.lazesoft.com/lazesoft-windows-key-finder.html Run it, copy then paste the Key presented into google. If its a known fake it will show results. While this isn't 100% its reasonably accurate.

As I said its easy to fool Microsoft activation servers into thinking the OS is legit. Had one a few months back, W7 Ultimate along with Office 2010 Pro -- all said were legit by MS but it wasn't -- simply because of the patch that someone had installed. The Office key is one I've seen many times, and the COA was for Home. Computer purchased From Trademe.

13-09-2015, 01:40 PM
Could check here http://windows.microsoft.com/en-NZ/windows/genuine(some non legit make it through though)

Does it have the Get windows 10 logo? ,if it does not there is usually a reason for it not showing

bk T
13-09-2015, 01:58 PM
So, can I confirm that it is NOT possible to downgrade it to Win7 Home Prem without having to reinstall?

13-09-2015, 02:28 PM
So, can I confirm that it is NOT possible to downgrade it to Win7 Home Prem without having to reinstall?

Correct (Officially anyway) you cant simply change the key. You could go the other way upgrade from a lower to Higher version as it then adds in functions the lower version doesn't have.

Just came across This article (http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_install/converting-from-windows-7-pro-to-home-premium/387e57f5-63e6-419c-aec5-1a28339c262c) - never tried it, and never will, so use at own risk. ( basically its meant to change the reg keys then do a repair install) Quicker to do it clean after saving the drivers.
There are manual ways above by editing the reg and doing a repair install after, but theres no guarantee it works.

You will need a Copy of windows 7 Home DVD as well. (bet one didn't come with the laptop ;) )

When I do it it takes about 10-15 minutes from start to finish excluding drivers, So no mucking about, but you wont have the setup I have :)

bk T
13-09-2015, 05:12 PM
Thanks, wainuitech. A clean install probably will be a better option!

14-09-2015, 10:41 AM
It is quite possible that the machine has been upgraded and the sticker has not been changed.

Could be , but doubt it. Ive yet to see a GENUINE Win Ultimate .
I have seen pirated versions of Pro installed when the buyer realizes the limitations of Win Home on a Office/Work network
Who knows whats been added to the pirated Win ISO downloads . Reload is the safest option.

But anywho, is this thread realted to... :)
trademe thread mentions Win Ultimate

bk T
14-09-2015, 01:11 PM