1.    14 Mar 2016 #1
    Join Date : Mar 2016
    Posts : 13
    Windows10

    Reinstalling Windows from a USB


    Well, I'm doing this. I chose not to keep any files and so Windows proceeded to install but gave me no option to format C Dive. After installing, there were a bunch of left over program folders on C Drive plus the Windows.old folder. Have I missed something. I thought a clean install was exactly that. But it appears not. So I'm doing it all again. So far, same result. Any comments? Thanks.
      My ComputerSystem Spec
  2.    14 Mar 2016 #2
    Join Date : Feb 2014
    Posts : 9,475
    Windows 10 Professional

    Quote Originally Posted by lostindigital View Post
    Well, I'm doing this. I chose not to keep any files and so Windows proceeded to install but gave me no option to format C Dive. After installing, there were a bunch of left over program folders on C Drive plus the Windows.old folder. Have I missed something. I thought a clean install was exactly that. But it appears not. So I'm doing it all again. So far, same result. Any comments? Thanks.
    Are you booting to the USB or simply opening it and clicking the setup.exe?
      My ComputersSystem Spec
  3.    14 Mar 2016 #3
    Join Date : Mar 2016
    Posts : 13
    Windows10
    Thread Starter

    HI Edwin,
    I opened the USB drive and clicked the setup.exe file. Windows then proceeded to install. It checked for updates, asked me what I wanted to keep, then started the installation process. It now says, Installing Windows 25% done. Copying files 65%.
      My ComputerSystem Spec
  4.    14 Mar 2016 #4
    Join Date : Feb 2014
    Posts : 9,475
    Windows 10 Professional

    Quote Originally Posted by lostindigital View Post
    HI Edwin,
    I opened the USB drive and clicked the setup.exe file. Windows then proceeded to install. It checked for updates, asked me what I wanted to keep, then started the installation process. It now says, Installing Windows 25% done. Copying files 65%.
    Yeah, you would need to boot to that Flash Drive to perform a 'clean install' in the proper sense. Ensure the usb is bootable.
      My ComputersSystem Spec
  5.    15 Mar 2016 #5
    Join Date : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 10,596
    Windows 10 IoT

    If you boot from the install media and select custom install, you will have the option to delete any and all partitions. Delete the one Windows is currently installed too and there will be no leftovers. I usually delete them all (except my data partition) and install to the unallocated space. Windows will then create all the custom system partitions it needs automatically.
      My ComputerSystem Spec

 


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