Upgrade Windows 7 Professional to Enterprise

Richard Fleming

Driven to computers at a young age, I wear my geek badge with pride! I have an active interest in all things 'tech', but absolutely love web development. Building something that gives you instant gratification and is visible to all attached to the net is a rush!

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14 responses

  1. Marc says:

    Worked great for me, Thanks, You said “This process takes a while. If the machine you want to upgrade is fairly straight forward, you’d probably be best to just install Enterprise from scratch.”

    If you install it from scratch you have to go and find all the little drivers that make PCs work so great, This saves ALOT of time actually.

  2. WJ says:

    Is it possible that upgrade 7 pro sp1 to 7 Enterprise sp1 don’t work? only without SP?

    • I’ve successfully been able to upgrade 7 Pro to 7 Enterprise, and 7 Pro SP1 to 7 Enterprise SP1. I know you can’t go from SP1 to RTM, and I haven’t tried going from RTM to SP1, but I suspect it won’t work.

      I think the problem that prevents the upgrade from working, at times, is dependent on how long SP1 has been applied. With the host of updates that get applied on top of SP1 and then upgrading to Enterprise SP1, those updates no longer are there, and Windows just can’t handle that.

      For machines that don’t upgrade properly, it will be interesting to see what happens when SP2 comes out. With a fresh SP2 install then upgrading to Enterprise SP2, it just might work.

  3. Keith says:

    Great post! Has worked fine for me and is a great time saver!

  4. Jeff says:

    Confirmed that this works. Tested on a spare desktop first before trying on a live user system. Going for the live system on Friday.

  5. Ken says:

    Thanks for posting this! I’ve used it at least 5 times now so that we can remove Symantec Encryption Desktop and use Bitlocker. What a difference it makes! This saves me from having to reload laptops and lets me get them back to the owners as quick as possible!

    Thanks again!

  6. Benjamin Sigrist says:

    Fantastic. Worked perfectly and saved a lot of effort rebuilding an image.

    Thank you for the clear instructions.

  7. Neil says:

    This worked well and saved me lots of time – nice one Richard

  8. matt says:

    i tried with sp1 to sp1 and it kept telling me that my pro version was newer than my enterprise version and errored out. i didn’t want to have to start from scratch due to drivers but it seems i saved them and it wont take me too long. was just wondering if anyone knew what this error might mean.

    • Hey Matt, sorry to hear you had problems.

      To answer your question, the reason why you received those errors is because your Pro version was newer than your Enterprise.

      It isn’t enough to have a Pro SP1 install and an Enterprise SP1 install disk. The Pro minor version number needs to match what the Enterprise one will be. Your Professional install probably has SP1 and a bunch of hot-fixes and/or roll-up packages installed, where the Enterprise SP1 installer you’re using doesn’t have those extras included.

      You can always use a technique called ‘Slipstreaming’ to inject updates into an install image, but if this is just a one-off thing, then reinstalling definitely quicker.



  9. wolf says:

    Hi Richard, I tried it and got Trouble to convert from nterprise to Prof, but then I uninstalled IE11 and all works like desired…
    Thnaks and regards

  10. Thank you for sharing nice informations. Great. In the last years i do it in the same way, but if you have a fully installed pc with many applications, it can be that some products of Microsoft don’t run after an upgrade to Win 7 Enterprise. If it possible, check if you can do a fresh install of Windows 7 Enteprise. Thats my recommandation. Thanks Richard.

    best regards
    Adrian Jung (bluecon)