Windows 10: Can't locate Windows 7 Pro 64 Bit Product key

I have an old Dell 690 Precision Workstation that is running on WINDOWS 7 PRO 64 Bit.

I purchased this as a used certified workstation with Windows 7 Pro 64 Bit installed.

Tried numerous ways to "Find" the Product code.
Its stating that the Installed Key : "MAK key not available"
Line below states: OEM Key: Windows Vista OEM Marker present in firmware.


Should I just bite the bullet and buy WINDOWS 210 PRO & load it over my current Windows 7 Pro?

I rather not lose my existing datas and programs?

OR do I wipe it clean & install Windows 10 Pro & hope that my old software can be found & re-installed back on to my machine..


Any ideas would be helpful.

ALSO is it even worth rebuilding this old workhorse..

:)

 

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Upgrade from Windows 7 Ultimate 32 Bit to Windows 10 Pro 64 Bit

Is this upgrade to Windows 10 Pro correct? Any tips you can give me? Thank You!!

Starting with my W7 Ultimate 32-Bit Desktop; add Memory and Replace SSD; load W7 Ultimate 64-Bit; Upgrade to 64-bit Windows 10 Pro.

My Desktop

Processor: Intel i5-2500k

Motherboard: Intel DH67BL

Memory: Crucial 2x2Gb = 4GB Plus Crucial 2x8Gb = 16Gb Total = 20Gb

SSD: Intel X-25 Series 320 80Gb (C: OS, Programs, Program Data, etc.)

Replace with Samsung 850 Evo 250GB

HDD: Western Digital 1 Tb (D: User Data)

Windows 7 Ultimate Product Box (Copyright 2009) containing

Product Key

32 Bit Disk

64 Bit Disk

Upgrade steps:

• 
  Make hardware upgrades (in bold)
  
• 
  The new SSD is empty. Load the W7-64 Bit disk into the disk drive hoping it will led to a W7-64 Bit install on the SSD (C: drive).
  
• 
  The W7 Ultimate version will be a revision corresponding to when my PC was new (about 2010). Upgrade PC to the latest version of W7.
  
• 
  Use the Library function to relink user data to my D: drive data.
  
• 
  Use the invitation from Microsoft to invoke the upgrade to Windows 10 Pro.