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Can Windows 7 Home Premium be upgraded to 7 Professional if I Have the Professional DVD and Product key

I bought a Toshiba laptop and forgot Windows 7 home Premium can't join a domain.  Can I upgrade it to Professional using the DVD we are licensed for?  I believe I can use the Anytime upgrade, but I'm not sure.  

I read several posts and didn't find my exact answer.  
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J.R. Sitman
Asked:
J.R. Sitman
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1 Solution
 
RickCommented:
You can't upgrade from Home to Professional. You will need to do a clean install.
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ComputerAidNZCommented:
As Rick Qwu has mentioned a clean install is prefferrable, but I have performed in-situ upgrades, by performing th anytime upgrade, belive me if it fails it will not damage your current system, essentially, the operating system basics are the same for all versions but the lic number is what turns on/off the features you are allowed to see/use.  The lic you have can be entered when doing an upgrade and if it works, you are well away, if it fails you will either need to to an inline install or find another number.
Go ahead, do the anytime upgrade, if it fails, you then have limited your options; if it goes through, then you're done!!
All the best
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RickCommented:
I was wrong, according to this you can use Anytime Upgrade from Windows 7 Home Premium to Windows 7 Professional.
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LeeTutorretiredCommented:
That is incorrect.  See this Microsoft Technet page:

http://technet.microsoft.com/en-us/library/dd772579(WS.10).aspx
Windows 7 Upgrade Paths
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ComputerAidNZCommented:
BTW, although I hate to contradict Rick or anyone for that matter, I have done three upgrades from Home Premium to Professional for exactly the same reason as you are doing it for - to get on a domain.  All went flawlessly and all were on HP notebooks.  All were done using Anytime Upgrade. The key is getting the right lic key.

Sorry to Rick though.
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ComputerAidNZCommented:
Phew, someone else has agreed with me - I don't feel so bad now!!
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ComputerAidNZCommented:
Since you have a DVD - I assume this is a corporate key, in which case it should be fine.
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BitsBytesandMoreCommented:
Of course you can. You need to use the Windows 7 "Anytime" upgrade: http://www.microsoftstore.com/store/msstore/en_US/buy/pageType.product/externalRefID.C562285E

Basically, if you already have license key... just enter it. This is assuming that the license key that you have is for a Toshiba also (OEM) since your Toshiba comes with the OEM license for Windows 7 Home.

Follow these instructions to do the "Anytime Upgrade":
http://windows.microsoft.com/en-US/windows7/help/videos/upgrade-to-another-edition-of-windows-7-by-using-windows-anytime-upgrade

Bits ...
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dbradley626Commented:
As long as you have a key and the disk you shouldn't have any problem upgrading it.
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J.R. SitmanAuthor Commented:
Thanks to all.  To rick, no problem, you corrected yourself.
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PowerEdgeTechIT ConsultantCommented:
Agreed!  By all means an Anytime Upgrade can be done and it only takes 10 minutes.  It doesn't get any easier than that.  I know you already have the product key - and that is all you need, but Microsoft actually sells the Anytime Upgrade you are looking for, so yes, you can.
http://www.microsoftstore.com/store/msstore/en_US/buy/pageType.product/externalRefID.C562285E
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J.R. SitmanAuthor Commented:
To all,  
 the Anytime upgrade failed and when I tried to upgrade from DVD it told me to use Anytime upgrade
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ComputerAidNZCommented:
OK, if you have a valid license, which you are telling us you have, then if you can scout around for a another machine that has Pro on it (Toshiba OEM), then perform update using its key, then maybe change product key afterwards.  I have performed side-by-side upgrades, but have never bothered to change product key, cos I'm lazy!!
If you have trouble getting a Tosh key, let me know.
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J.R. SitmanAuthor Commented:
I'll try that now.  Mine has a key.
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J.R. SitmanAuthor Commented:
I just checked two 7 computers and their keys format is xxxxx-xxx-xxxxxxx-xxxxx.  The key I have and the Anytime upgrade want xxxxx-xxxxx-xxxxx-xxxxx-xxxxx.  Any suggestions?
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ComputerAidNZCommented:
I'll need to PM you as the info is sensitive, how can you be contacted?
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PowerEdgeTechIT ConsultantCommented:
I'll bet it actually reads:
xxxxx-OEM-xxxxxxx-xxxxx

Right?  This is not your product key ... only a generated representation, indicating it is an OEM (Toshiba, Dell, HP, etc.) key.

You need something like Magic Jelly Bean to retrieve the actual product key used to activate it.  HOWEVER ... If this was installed from the factory, there is a very good chance the key that will be retrieved will NOT match what is on your computer, as OEM's usually use a generic, self/auto-activating key.
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J.R. SitmanAuthor Commented:
@ComputerAidnz
jsitman@spcala.com
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J.R. SitmanAuthor Commented:
My computer at home was installed by me.  I'll look up MJB
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J.R. SitmanAuthor Commented:
MJB gave me the same key as what was displayed in "change product key"
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PowerEdgeTechIT ConsultantCommented:
Actually, looking at the website for Magic Jelly Bean, only their paid version will work on Windows 7, so you'd have to find a different utility for it to work on Windows 7.  If you are looking for a possible incompatibility with product keys, you can save yourself some time ... all Microsoft Windows product keys are 25-character alpha/numerics.  System properties shows only a generated value to represent the type of key used.
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BitsBytesandMoreCommented:
Try Belarc Advisor www.belarc.com. It's free and will give you the serial number plus tons of other information.

Bits ...
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