How to increase size of windows partition in dualboot?

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  1. Posts : 56
    Windows 7 Home Premium 64Bit
       #1

    How to increase size of windows partition in dualboot?


    Ok so i originally had windows 7 and i decided to install win8 in a dualboot.
    I wasnt expecting to use win8 to be very good, and i didnt plan on using it too much so i only gave it a 50gb partition.

    Now i want to make it bigger (probably around 100gb)
    So how can i extend the partition into my win7 partition?
    Do i need to shrink the win7 partition then merge the unallocated space it makes with my win8 partition?

    Also i really prefer to use disk management, and no thrid party hard drive software.
    I've had some bad experience with Easeus in particular (see my older posts for more info if youd like)

    Ive attached a screenshot of my disk management for a visual reference

    Thanks
    Attached Thumbnails Attached Thumbnails How to increase size of windows partition in dualboot?-screenshot.png  
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  2. Posts : 3,300
    Win7 Home Premium 64x
       #2

    You should be able to shrink the C: drive and it will free up un-allocated space: Partition or Volume - Shrink

    and then extend the d: drive. Just read through both tutorials. I am not an expert on this, but there are many on this forum that are. Hopefully one of them sees this and can confirm and walk you through it.

    Partition or Volume - Extend

    Both tutorials rely on built in windows functionality.
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  3. Posts : 3,300
    Win7 Home Premium 64x
       #3

    Only thing I would warn is that if the unallocated space is freed up on the other side of the D: drive then the c: drive won't be able to extend into it. This would be fixable with 3rd party tools, but I am not certain on this happening. there are posts in those two tutorials about that as well. again, Im not an expert on partitions. I have done partitioning, but never ran into problems that needed expert help.
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  4. Posts : 56
    Windows 7 Home Premium 64Bit
    Thread Starter
       #4

    Thorsen said:
    Only thing I would warn is that if the unallocated space is freed up on the other side of the D: drive then the c: drive won't be able to extend into it. This would be fixable with 3rd party tools, but I am not certain on this happening. there are posts in those two tutorials about that as well. again, Im not an expert on partitions. I have done partitioning, but never ran into problems that needed expert help.
    thanks. this is exactly what im scared will happen.
    It happened last time and disk management would merge because the partitions werent beside each other,
    then when i used easeus everything just got corrupted.

    I guess ill just wait for an expert response...i really dont want to screw up
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  5. Posts : 3,300
    Win7 Home Premium 64x
       #5

    I would also back up all your data prior to doing anything with them. Also, I have seen experts on here do some pretty amazing things....
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  6. Posts : 11,408
    ME/XP/Vista/Win7
       #6

    I would look for a 3rd party Partitioning software, which fully supports Windows 8, uEFI, GPT & Secure Boot.
    Which is signed by Microsoft.


    Paragon Partition Manager Free Edition - Free Download
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  7. Posts : 56
    Windows 7 Home Premium 64Bit
    Thread Starter
       #7

    theog said:
    I would look for a 3rd party Partitioning software, which fully supports Windows 8, uEFI, GPT & Secure Boot.
    Which is signed by Microsoft.


    Paragon Partition Manager Free Edition - Free Download
    i really dont want to use 3rd party software.
    Can i just shrink the D: partition (win7), and then extend my C: (win8) into the unallocated space?
    See my screenshot to see what im talking about
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  8. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       #8
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  9. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #9

    Good information from Arc. This is also a useful reference for more info:

    Partition Wizard : Use the Bootable CD
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  10. Posts : 56
    Windows 7 Home Premium 64Bit
    Thread Starter
       #10

    Arc said:
    Thanks ill use that, but wont this work through disk management?:
    -shrink the D: partition (Windows 7)
    -format the unallocated space partition that it makes to ntfs
    -extend my C: (win8) into the ntfs space?
    See my screenshot to see what im talking about
      My Computer


 
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