Windows 10: Unable to install windows 10 Solved

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  1. Posts : 9
    Windows 7 Home Premium 32bit
       06 Aug 2015 #1

    Unable to install windows 10


    I get the error message: "Windows 10 couldn't be installed - We couldn't update the system reserved partition".

    Anyone know how to solve this? Thanks.
      My ComputerSystem Spec

  2.    06 Aug 2015 #2

    One possible way: back up data and drivers, image the drive for possible failure of upgrade process, restore PC to factory status, and try to upgrade from that.
      My ComputerSystem Spec

  3. Posts : 5,011
    Windows 10 Pro X64 15063.138
       06 Aug 2015 #3

    Post a snapshot of a fullscreen Disk Management Window:

    To open Disk Management, press Windows key+r, type diskmgmt.msc and press Enter or click GO. Make it full screen. Expand the fields as necessary so everything can be seen.

    Windows 10: How to Take a Screenshot in Windows 10

    Windows 8: How to Take and Create a Screenshot with Paint in Windows 8 and 8.1

    Vista and Windows 7: How to Use the Snipping Tool in Vista - Vista Forums (says it's for Vista but also works with Win 7/8).

    You have to increate the size of the reserved partition from 100MB to 350MB or 500MB. Disk Management will tell us.
      My ComputersSystem Spec

  4. Posts : 9
    Windows 7 Home Premium 32bit
    Thread Starter
       07 Aug 2015 #4

    ok done.
    Attached Thumbnails Attached Thumbnails Capture.JPG  
      My ComputerSystem Spec

  5. Posts : 5,011
    Windows 10 Pro X64 15063.138
       07 Aug 2015 #5

    Yup, the System Reserved is only 100MB and needs ot be made bigger. The free version of AOMEI Partition Assistant can do this for you.

    Free Partition Manager Software - AOMEI Partition Assistant Standard

    You need to move the starting point for your C: drive to the right by 250MB then increase the size of System Reserved to 350MB. That should do it.

    Click image for larger version. 

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      My ComputersSystem Spec

  6. Posts : 9
    Windows 7 Home Premium 32bit
    Thread Starter
       07 Aug 2015 #6

    It creates a whole new partition when I reduce the C drive and it prevents me from altering the system reserved.
      My ComputerSystem Spec

  7. Posts : 5,011
    Windows 10 Pro X64 15063.138
       07 Aug 2015 #7

    You do it all at the same time.

    1. Reduce C:
    2. Expand Sys Reserved.

    Did AOMEI reboot to do the actual changes?
      My ComputersSystem Spec

  8. Posts : 9
    Windows 7 Home Premium 32bit
    Thread Starter
       07 Aug 2015 #8

    Not sure how to do that at the same time. It didn't keep the changes. I reverted it back once I saw it had created an extra partition..
      My ComputerSystem Spec

  9. Posts : 5,011
    Windows 10 Pro X64 15063.138
       07 Aug 2015 #9

    You right click on C: and select Resize Partition.
    Use the small down arrow to reduce partition size and free up about 150MB.

    Click image for larger version. 

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    If it won't let you change the System Reserved, go ahead and apply the C: change.
    Repeat for the System Reserved only this time expand it to include the space freed from C:.
    Now apply both changes. This should cause a system reboot where the changes are actually applied.
      My ComputersSystem Spec

  10. Posts : 9
    Windows 7 Home Premium 32bit
    Thread Starter
       08 Aug 2015 #10

    I resized C and rebooted, but system reserved still won't resize. When I press the up arrow it does nothing. I tried merging the new "unallocated" 250MB partition created after resizing C but system reserved is gray'd out so I can't merge them.
      My ComputerSystem Spec

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