Windows 10: How Compactor work with dual boot?

Discus and support How Compactor work with dual boot? in Windows 10 Ask Insider to solve the problem; I currently use the CompactGUI to compress files on my first boot. As far as I known, CompactGUI uses the windows built-in compactor.exe, then my... Discussion in 'Windows 10 Ask Insider' started by /u/hoangtongvu, May 20, 2025 at 1:22 AM.

  1. How Compactor work with dual boot?


    I currently use the CompactGUI to compress files on my first boot. As far as I known, CompactGUI uses the windows built-in compactor.exe, then my concern is what are compressed files look like on my second win 10 boot? Will they comeback to the original size? Will they be usabe?

    submitted by /u/hoangtongvu
    [link] [comments]

    :)
     
    /u/hoangtongvu, May 20, 2025 at 1:22 AM
    #1
  2. topgundcp Win User

    Dual Booting with Windows 8.1


    The procedure below will allow you to boot Windows separately or in dual boot configuration.
    Here's what I recommend to do:
    1. Disconnect the drive containing Windows 8.1
    2. Install Windows 10 with one drive connected.
    3. After step 2, reconnect the drive containing Windows 8.1
    4. Boot up Windows 8.1. Open disk management and take a note of the drive letter of Windows 10 OS.
      NOTE: if you boot up Windows 10, then take a note of Windows 8.1 drive letter
    5. Open Admin command prompt and type: bcdboot X:\windows where X: is the drive letter of Windows 10 (Windows 8.1 if you boot from Windows 10 in step 4)
    6. Reboot the PC. You should have a dual boot screen.

    NOTE: To break off the dual boot setting, Win+R->msconfig->boot and delete the none default entry on the list.
     
  3. Dual Booting

    Please follow the steps in the tutorial for how to post the screenshot. I cannot even see Disk 0, 1 and 2 on the drive map, and the columns were not spread so i can see the labels in the listings above even though it lllustates how to do this.

    As long as you don't have a UEFI install then you can move the boot loader to Windows 10 so that it manages the Dual Boot using it's menu, add the Dual Boot back from there. These same steps using EasyBCD should do it:

    http://www.sevenforums.com/tutorials/209885-boo...
     
    Greg Carmack - Windows MVP, May 20, 2025 at 1:25 AM
    #3
  4. How Compactor work with dual boot?

    Dual boot

    Hi Jazz. I'm Greg, 10 years awarded Windows MVP, here to help you.

    The license doesn't matter for a Dual Boot with Linux.

    Here is the best guide to dual booting with Linux:

    https://www.groovypost.com/howto/dual-boot-wind...

    Report back results for each step so I know what else to suggest.

    Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.

    ______________________________________________

    Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.
     
    Greg Carmack, May 20, 2025 at 1:25 AM
    #4
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How Compactor work with dual boot?

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