Error: failed to open EFIBOOTgrubx64.efi-not found
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I have a Sony Vaio and dual boot windows 10 and Ubuntu 16.04. All of the sudden, the main windows partition stopped working. It would just load infinitely. I tried to use boot repair to fix it. I don’t know if that could have even fixed it. Anyways, it did not work. So I am using Ubuntu. Then, I restarted my computer and now all of the sudden before I even get the option to choose an OS to boot, I get this error. It just brings me to vaio care. If I select start troubleshooting, I get the same error. I now have practically no use out of my computer and have no idea why it stopped working suddenly. Please help me at least be able to use one of my operating systems again. I do not want to lose data on either partition. Update: When I used boot-repair it told me to turn off secure boot in BIOS setup. Now, I discovered th...