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04-08-2017 10:11 AM - edited 04-08-2017 10:13 AM
I have installed Ubuntu dual boot alongside Windows 10 on my Pavillion and then I uninstalled Ubuntu. Now I cannot start up Windows. When pressing the start button I get
Boot device not found
Please install an operating system on your hard disk.
Hard Disk - (3F0)
F2 System Diagnostics
For more information please visit: www.hp.com/go/techcenter/startup
How do I get Windows back?
I have already tried steps like this one: http://www.makeuseof.com/tag/how-to-safely-uninstall-ubuntu-in-windows-dual-boot-environment/
04-08-2017 12:34 PM
No installation media came with the PC, but I did create one USB memory Windows 10 recovery unit. I tried that one with the steps described on the web page, but that did not work - and after that I was not able to use the USB recovery unit again so I burned an image onto a DVD.
04-12-2017 10:32 AM
On a different computer download the media creation tool from Microsoft and run. With this you can create a bootable drive with windows 10 on it.
When prompted click on to install on different computer and make sure to get the same edition which was already installed on the PC. This edition will be automatically activated if installed.
Once you have the bootable pendrive boot the computer from this drive and once you get to the windows install, in the lower left there will be the option to repair this PC. Click on this and in advanced options see if you can perform a startup repair.
If this does not work or if you like you can perform a clean installation of Windows 10 (with creators update). If asked for product key click on "do not have one" and Windows will be automatically activated once installed. I like to perform clean installations of the OS when there are major updates.
Let me know if you need further help,
04-12-2017 12:06 PM
I have tried using that USB pen drive to recover the bootloader, without success (following the terminal input mentioned in the link I provided above). So I guess a full installation is the only way out now...
I am a bit unsure when it comes to the partitions. I have the following ones now:
Unit 0 unallocated space 260 MB
Unit 0 partition 1 16 MB Type MSR (reserved)
Unit 0 partition 2: Windows 221.6 GB Primary
Unit 0 partition 3: Windows RE tool 980 MB Recovery
Unit 0 partition 4: 15.6 GB OEM (reserved)
How should I reorder my partitions for a new installation?
04-14-2017 11:25 AM
You could try recovering the system with HP recovery at startup or by ordering recovery disks
Personally when I perform a clean install I choose custom install and delete all partitions, creating one unallocated space and I choose this space to install Windows. Windows will recreat e MSR partiton and can recreate the Windows recovery partition.
So that is my advice.
Let me know,