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Windows 7: Unable to boot into Windows after installing Ubuntu on usb drive

26 Apr 2015   #1
art11s

Windows 7 x64 Pro
 
 
Unable to boot into Windows after installing Ubuntu on usb drive

Getting "Operating system not found" message right after I press the power button. This happened right after I did a full install of Ubuntu to a usb drive. Have a Sony Vaio S Series laptop. The Assist button that is supposed to boot from a recovery partition on the internal drive produces the same error. Tried resetting the BIOS to default settings but didn't help (the default is UEFI). There are no hardware issues as I can run Ubuntu and see all the drives. Ran an Ubuntu Boot Repair utility. Here is a summary report output: Ubuntu Pastebin. Any suggestions?


My System SpecsSystem Spec
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26 Apr 2015   #2
gregrocker

 

Run Startup Repair - Run 3 Separate Times.

Everything else that can be done is here for Troubleshooting Windows 7 Failure to Start
My System SpecsSystem Spec
27 Apr 2015   #3
art11s

Windows 7 x64 Pro
 
 

Booted in using Recovery disk. Which partition should I mark as active (see attachment)? Not allowing me to mark any from the disk management gui.


Attached Thumbnails
Unable to boot into Windows after installing Ubuntu on usb drive-diskmngm.png  
My System SpecsSystem Spec
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27 Apr 2015   #4
gregrocker

 

You have an EFI System partition so as it says in Troubleshooting Windows 7 Failure to Start there is no Active partition. Run a few Startup Repairs and report back what it finds.

Boot into BIOS setup to make sure Windows Boot Manager is set first to boot, any choice for UEFI First to boot also needs to be set correctly.

Report back any BIOS settings choices for CSM, UEFI, EFI, Legacy BIOS and BIOS Boot order.

There are not a lot of repair options for EFI installs, so if Startup Repair cannot fix it you can skip to Step 11 to rescue any files and run Recovery or do a Clean Reinstall.

For all repairs using Win7 disk or System Repair Disk these disks must be booted as UEFI devices. Use the BIOS Boot menu key to boot these.
My System SpecsSystem Spec
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 Unable to boot into Windows after installing Ubuntu on usb drive




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