Is uninstall of Win 10 as simple as...?

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  1. GARoss's Avatar
    Posts : 365
    Windows 10 Pro 64-bit (1903-OS Build 18362.295)
       #1

    Is uninstall of Win 10 as simple as...?


    Don't panic! I'm not ready to uninstall Windows 10 just yet but will need to eventually. But, to finish my question; is uninstall of Win 10 as simple as booting into Windows 7, then deleting the Windows 10 partition & re-acquiring that space back to it's original drive? Will something need to be changed in the boot log (?) so my PC wont think there's two OS still? Just asking.

    As a Windows 7 user, I didn't care for the original look & feel of Win 8. Win 10 seems to have a more Win 7 look but with apps. If 10 is faster or overall more advanced than Win 7, I can't tell just yet.

    With the latest update, some of the Win 10 apps crash but overall the OS appears stable. Other software installed OK; Sony Vegas 12-64 bit, iTunes & Quicktime. VLC Media Player, Apache Open Office on the open source software side install & play fine. I've had a few crashes with Chrome. All in all, Windows 10 seems solid.
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  2. Posts : 803
    10 Pro Preview x64
       #2

    Yes, you can boot into 7, delete your TP partition and then extend your 7 partition to use the free unallocated space generated. Then go into msconfig (Run then type msconfig ​and hit <enter>) and delete the boot entry for TP. That should be all.

    This is assuming you are dual booting on one drive of course which it sounds like you are :)
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  3. davehc's Avatar
    Posts : 513
       #3

    If you installed Windows 10 after Windows 7, as a dual boot, it will have installed its own boot manager as the priority.. Deleting the Windows 10 install, will also delete that boot manager.
    You will probably need to run the boot repair from the windows 7 installation dvd, in order to rectify it.
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  4. whs's Avatar
    whs
    Posts : 1,935
    Windows 7
       #4

    If you dual boot on a MBR disk, you can use this procedure:

    Dual Boot - Delete a OS - Windows 7 Help Forums
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  5. GARoss's Avatar
    Posts : 365
    Windows 10 Pro 64-bit (1903-OS Build 18362.295)
    Thread Starter
       #5

    I allocated 50Gb of space for Win 10 on a high capacity storage drive, not C:.
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  6. GARoss's Avatar
    Posts : 365
    Windows 10 Pro 64-bit (1903-OS Build 18362.295)
    Thread Starter
       #6

    Here's a look at Disk Management from the Windows 10 side. Looks like the bootmgr is on Disk 0 or Windows 7's C: (H: on Windows 10).

    So, boot into Windows 7, delete Windows 10 partition and then extend that partition to use the free unallocated space generated. Then run msconfig & delete boot entry fro Windows 10 & that's it?


    Is uninstall of Win 10 as simple as...?-capture.jpg
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  7. ThrashZone's Avatar
    Posts : 5,981
    3-Win-7Prox64 2-Win10Prox64
       #7

    Yep,
    Been there buddy do it the proper way via whs's link,
    Otherwise a mess will be made only a 7 media disk will cure
    Files might be lost
    Cheers.
    I might add 10 looks like your default os also Not a good thing to have there :/
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  8. badrobot's Avatar
    Posts : 5,180
    Win 10 Pro x64
       #8

    This is exactly what I was talking about on the other thread. Be careful. If you updated to build 9860, Win 10 took over the bootmgr. This happened to a lot of people even when Win 10 is totally on a separate drive. If you have a macrium bootable usb, you can use it to fix the boot problem after deleting 10. Just boot up to macrium, then on the left column, select "fix boot problem", select your win 7 drive and just follow the rest of the instructions. Done.
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  9. Posts : 485
    Windows 10x64 17713
       #9

    Just running bcdboot C:\Windows elevated worked fine for me.
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  10. GARoss's Avatar
    Posts : 365
    Windows 10 Pro 64-bit (1903-OS Build 18362.295)
    Thread Starter
       #10

    Thanks for the suggestions.

    I noticed that a the bottom of whs link is a tutorial (
    http://www.eightforums.com/tutorials/2372-dual-boot-windows-7-windows-8-delete-windows-8-a.html). The Part One of the tutorial looks like my Disk Management on Windows 7 boot.

    Part Two of the tutorial refers to uEFI setup. I don't see where my PC is uEFI. My MB is a Gigabyte P67A-UD3-B3 which uses Award BIOS. So, I don't think Pt 2 if for me.

    Part One of the tutorial it doesn't mention changing msconfig to delete Windows TP. Should I?

    BTW - I do have my Windows 7 install DVD & also have Oops!Back-up to restore files. If things go wrong, will the boot be repairable using in install DVD?
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