Can someone tell me how this works?

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MikalE · #1 Post by **MikalE** » Sat Aug 10, 2019 8:57 am

Two years ago I upgraded from Windows 7 Pro to a purchased and downloaded copy of Windows 10 Home. The installer automatically upgraded the install to Windows 10 Pro, I guess because my system was running 7 Pro.

A year later I decided I didn't like Windows 10 Pro and downgraded back to Win 7 Pro with a clean install from an .iso I have.

I buy a new Dell with Windows 10 Home and upgraded this to Windows 10 Pro using the COA on the Windows tag from my T520.

Both copies are using the same COA are active and authentic according to MS. Is it because they are two different operating systems on two different computers? Has anyone else done this?

I didn't really think it would upgrade using the COA from the T520; it was just something I wanted to try for the heck of it...but it worked.

Thinkpad4by3 · #2 Post by **Thinkpad4by3** » Sat Aug 10, 2019 6:52 pm

It seems that 7 and 8 keys allow for the activation of 10, I think it maybe something to do with that free upgrade that they had way back when. Not going to complain about having free COA keys strapped to the back of my old TPs.

w0qj · #3 Post by **w0qj** » Sat Aug 10, 2019 10:01 pm

We have legitimately upgraded from Win7 Pro 64-bit to its Win10 equivalent in July 2019.

It can still be done, albeit with more hoops to jump through...

MikalE · #4 Post by **MikalE** » Sun Aug 11, 2019 6:30 am

That is not exactly what I was asking about.

I wanted to know how it is I can use one key for two different OS's on two different computers.

Windows 10 Pro was upgraded on the Dell using the Lenovo T520's key that is also being used for Win 7 Pro on the T520.

#5 Post by **RealBlackStuff** » Sun Aug 11, 2019 6:42 am

As long as Micro$haft finds another sucker to spy on, they don't care HOW you got into their fangs!

#6 Post by **dr_st** » Sun Aug 11, 2019 7:03 am

So, you paid for 2 copies of Win10 Home (one downloaded, one with the DELL), and traded them for 1 copy of Win10 Pro (Win7 nonwithstanding)?

Sounds like a Win to me (pun intended), but not all would agree.

MikalE wrote: ↑
Sat Aug 10, 2019 8:57 am
Both copies are using the same COA are active and authentic according to MS. Is it because they are two different operating systems on two different computers?

I vaguely remember that it may be something like this.

MikalE · #7 Post by **MikalE** » Sun Aug 11, 2019 12:07 pm

I was begining to think I was the only straight man here.

Can someone tell me how this works?

Can someone tell me how this works?

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