cannot locate operating system


  1. ronestridge
    Posts : 1
    Windows 10
       New #1

    cannot locate operating system


    My dell 7500 has windows 7(C: drive) and windows 10(F: drive) installed on the single internal HDD. It also has three USB disks used only for data. When I boot I get a message saying that an operating system cannot be found and I should try unplugging my USB drives and then reboot. When I unplug the USB drives and re boot, it finds the windows systems and finishes the boot process with no trouble.
    Checking the BIOS shows only the CD-Rom drive and the three USB drives are listed in the boot order and the drive listing. I then deactivated the "boot from USB drives" item in my BIOS and then the computer boots fine.
    Also, I have been experimenting with Ubuntu on a USB pen drive but have removed it. I suspect that there are some parts of grub hanging around.

    Why can't the bios find my internal HDD which contains the two Windows systems?
      My Computer
    Quote Quote

  3. whs
    Posts : 1,935
    Windows 7
       New #2

    You have to get your BIOS boot sequence right. CD ROM as first and then the HDD from which you want to boot. Make sure it contains the bootmgr.
      My Computer
    Quote Quote

 

  Related Discussions
Operating system not found
in General Support

I have Sony Vaio I7, 8Gb memory. I do not have OS backup disk. I upgraded from 8 to 8.1 and then to 10. It has been running great. No problems. Use Kaspersky Internet Security. I shut down computer normally this morning. I powered back on this...
No operating system
in Installation and Upgrade

Hii, I had formatted my C: drive accidentally. I have windows 10 pen drive but I am not able to install windows 10. Please help me.
No operating system
in General Support

So I was trying to do a clean install of windows 10, however It got stuck for a very long time, so I had to reboot my computer. After trying to boot my pc up I was met with the "No operating system was found, try disconnecting any drives that dont...
No internet and no operating system
in Installation and Upgrade

Not sure what to do. I did find a page to uninstall Win 10, but I'm not sure it would do it correctly without the internet. I'm not even sure if it would work because I was afraid to try it. I was hoping you could give me some ideas before I took...
Desktop Operating System
in General Support

Am I alone, or are there others out there who would like a DESKTOP operating system to use with their DESKTOP computers? Swiping, pinching, tapping, chanting arcane spells to your Cortana crystal ball, ... -- all these may be OK on a phone or...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

 © Designer Media Ltd
All times are GMT -5. The time now is 16:26.
Find Us




Windows 10 Forums