Windows 10: No operating system found

Discus and support No operating system found in Windows 10 Installation and Upgrade to solve the problem; While trying to add unallocated space to a F partition on a dual boot Win10 and win7 HP Probook I inadvertantly clicked activate partition during the... Discussion in 'Windows 10 Installation and Upgrade' started by BSting, Nov 12, 2019.

  1. BSting Win User

    No operating system found


    While trying to add unallocated space to a F partition on a dual boot Win10 and win7 HP Probook I inadvertantly clicked activate partition during the move the Unallocated to the right of the partition I wanted to add it to and was instructed to reboot to complete the move. Now I get a black screen with 'operating system not found' and a bootable usb I got online is not found, tests of drive show no issues but I cannot get in to reset the partition?

    :)
     
    BSting, Nov 12, 2019
    #1
  2. zbook Win User

    Programs not working


    In post 26 there were steps listed to fix the operating system corruption.
    Are you able to follow them?
    In post 29 was the suggested dism repair command.
     
    zbook, Nov 12, 2019
    #2
  3. ' choose an operation system to start"

    Hi Bob,

    To better assist you, do let us the complete message that you receive.

    Sometimes, this could be due to two operating system installed in your computer. Just to make sure this is not the case, I suggest you to try the steps below:

    1. Press Windows key + R.

    2. Type msconfig and press enter.

    3. Click the "boot" tab and check if there are any other operating system listed.

    4. In addition, change the timeout time to 3 seconds(default)

    Let us know the result, we will be glad to help if you need further assistance.
     
    Wungraileng Vashi, Nov 12, 2019
    #3
  4. No operating system found

    need list of usb bootable Operating Systems

    I am looking for a good list of operating systems you can run from a usb or dvd.

    If not a list, then folks can just post their top picks.

    I want these to run from the usb/dvd without installing on the system or getting in the way of the system that exists on the hard drive.

    Thanks in advance.
     
    John Phoenix, Nov 12, 2019
    #4
Thema:

No operating system found

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