Windows 10: Reinstalling windows 10 on same (C) drive

  1.    31 Jan 2017 #1

    Reinstalling windows 10 on same (C) drive


    hello,

    i have 1 tb harddisk with C,D,E drives..my OS is on C drive ,, i have created back up of all drives in external..i am reinstaling OS on C drive where i had previously win10 15014insider preivew.. i am getting rid of insider preview and get back to current branch version windows 10 through bootable usb drive.when installing custom fresh install i want to know what is better .. should 1)i just just click Next and copying files on C drive continuing instaling windows (without format ) or 2)format C drive first and then click next copying files with instaling windows.. 3)delete all drives C,D,E and make unallocated space single,format it and then recreate partition again and install on the C drive

    i want to know which of the 3 options is best for reinstalling windows to have stable
      My ComputerSystem Spec


  2. Posts : 2,765
    Windows 10 Pro x64 v1803 Build 17134.1 (Branch: RS4 Release Preview)
       31 Jan 2017 #2

    If you want absolute clean install, then during the setup, choose format C-partition and let the setup install on that drive. If you do not format the drive, Windows will try to "upgrade".

    What do you have on partitions D and E? If E is the recovery partition, it could be a good idea to keep it, just in case.
      My ComputersSystem Spec

  3.    31 Jan 2017 #3

    partitions D and E i have movies ,video tutors of 3ds max , songs, softwares, serials ,, all entertainment stuffs etc...

    wow so i can upgrade from 15014 to CB 14393 if i dont do format on C drive ? if u remember me i posted one thread if i can go back from insider preview 15014.100 to 14393.693 with upgrade mode without deleting files apps etc..
    so if now i choose to custom install via boot and choose C drive without format i wil be retaining files as it is then
      My ComputerSystem Spec

  4.    31 Jan 2017 #4

    Hopefully your D: and E: drive partitions are at the end of your physical disk. I would select the custom install option. Delete all the partitions except for your D: and E: drive partitions and then select the resulting unallocated space and click Next. Let Winodws set up all it's partitions and that will still leave D: and E: drive partitions untouched.

    There will probably be 3 or 4 partitions you will delete in front of the D: and E: drive partitions.
      My ComputerSystem Spec


  5. Posts : 2,765
    Windows 10 Pro x64 v1803 Build 17134.1 (Branch: RS4 Release Preview)
       31 Jan 2017 #5

    Hold on to your hats! What I just said does not work...just a sec and I check how to keep everything while downgrading....
      My ComputersSystem Spec


  6. Posts : 2,765
    Windows 10 Pro x64 v1803 Build 17134.1 (Branch: RS4 Release Preview)
       31 Jan 2017 #6

    Nope, my VMs does not want to do the same things as I did on my PC just a while back...SRY, can't help any further.
      My ComputersSystem Spec


  7. Posts : 1,890
    Windows 7 Pro x64 Windows 10 Pro x64
       31 Jan 2017 #7

    Just format C and reinstall, leave your data partitions alone.
      My ComputersSystem Spec


  • Posts : 2,765
    Windows 10 Pro x64 v1803 Build 17134.1 (Branch: RS4 Release Preview)
       31 Jan 2017 #8

    AddRAM said: View Post
    Just format C and reinstall, leave your data partitions alone.
    Yes, that is the best choice, you can get all your important files on C-drive from the backup you made.
      My ComputersSystem Spec


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