I installed windows 8's developer preview version dual boot with win 7 ultimate. I put my win 8's partition to 11 GB (almost), but now when I try to uninstall the win 8 it dont allow me to uninstall it saying no enough space.

What to do ??

Then I try to login to win 7 and increase the size of the partition of win 8. This also is not possible.

Please help me with it. I want to uninstall it but how and what to do?


Just delete the partition from Windows 7, after that run msconfig (Windows key + R > type "msconfig" > Enter), switch to the Boot tab, select a list item named "Microsoft Windows 8" or similar and click "Delete", this will get rid of the Boot Manager prompt on boot(otherwise it would ask if you want win7 or win8). enter image description here

  • Ok I will try this out as I am at present in my office :)
    – The iOSDev
    Oct 27 '12 at 11:04
  • Does this allow me to undo my partition ie can I able to merge it back to the other partition or unallocated partition ?
    – The iOSDev
    Oct 27 '12 at 11:05
  • If you mean can you extend the Win7 partition over the deleted partition/unallocated space, the answer is yes.
    – page4096
    Oct 27 '12 at 11:08
  • Correct me if I'm wrong, but wouldn't you need a tool like gParted for this? I know you do for XP.
    – rtf
    Oct 27 '12 at 14:57
  • You can delete and extend partitions in XP too, and the msconfig application looks almost the same on all version of Windows.
    – page4096
    Oct 27 '12 at 16:38

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