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Serial Port
Posts: 15
Registered: ‎02-07-2017
Location: IN
Views: 472
Message 1 of 4

Edge 72z AIO: Change Windows 7 32 bit to 64 bit

I have this system → ​​Product Name: 3574G5Q Machine Serial Number: ******** → Think Centre Under warranty. I called and then chatted Lenovo Chat support, and asked them that i want to upgrade to Window 7 Home Basic from 32 bit to 64 bit, but the Lenovo gave me the false information that it is not posisble because it is shipped preinstalled. please mark my word false information.


But later I contacted Microsoft and they said → The same COA (key) is legally usable for 32 and 64 bit windows as of win 7 and onward. He also said the key comes pre-installed in the mother board.  The Microsft Guy was such a fantastic fellow that they called me and the Lenovo customer care India through conferenece call, and expalined them that do not give false inormation. Lenovo team was unable to provide me the COA (key), and later now they are asking me to visit the nearest center to obtain the Window 7 Home Basic recovery media 64 bit buy paying a price, wich is above 2600INR(50$USD). Mys system is in warranty, and I have  a leagal License this sounds very tortuous and an attempt to drill my pocket. I should get this recoverable media free of cost.


Proof Here.


Mod's Edit: System model added to the front of Subject line to improve visibility / clarity.  

Serial number removed from public view to protect owner from its unwanted use.


Retired Support Specialist
Posts: 291
Registered: ‎01-16-2017
Location: GB
Views: 327
Message 2 of 4

Re: Edge 72z AIO: Change Windows 7 32 bit to 64 bit

Hi codeispoetry,


Thanks for posting and welcome to the forum!


How are you looking to upgrade your machine from a 32-bit processor to 64-bit? The same key may work for both versions, but you may experience problems installing Win7 64-bit on a 32-bit unit. I'd also imagine the warranty would only cover a free recovery media if something were to happen to your AIO out of your control, It'd be best to contact them again or see if someone else facing a similar issue can help you further.


Let us know how it goes!

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Serial Port
Posts: 15
Registered: ‎02-07-2017
Location: IN
Views: 325
Message 3 of 4

Re: Edge 72z AIO: Change Windows 7 32 bit to 64 bit

Now I have the Key with me, and I got the key with the help of the belarc software →

My question is How should I create the bootable media Window 7 Home basic edition 64? I was redirected by Microsoft guy to this place →

But he himself said that this link is for retail Key, and my key is not retail Key but shipped with the machine. I do not Know its technical term.

What's DOS?
Posts: 1
Registered: ‎12-17-2018
Location: PK
Views: 83
Message 4 of 4

Re: Edge 72z AIO: Change Windows 7 32 bit to 64 bit

you can also download windows 7 ultimate from here:

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