We help IT Professionals succeed at work.
Get Started

Windows 10 product key

medcomputers asked
Last Modified: 2018-03-13
I am trying to install my "free" Windows 10 upgrade on a Virtual Box partition, upgrading from an up to date legitimate version of Windows 7 Ultimate. I am now constantly being asked for my product key and have tried my Win 7 Ult. key which does not work. I receive the error code: 0xC004C003. My only other option is to buy a copy of Windows 10 at £189.99. Can anyone tell me where I might find a Windows 10 product key so that I can upgrade for free as Microsoft keep advertising?
Many thanks
I also see that my default screen resolution, 1920 x 1080, under Windows 7 is not available. Only lower resolutions. Is this a Windows 10 glitch?
Watch Question
Most Valuable Expert 2015
This problem has been solved!
Unlock 2 Answers and 48 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE