How to fix error “operating system not found” on Sony Vaio?
Error: Operating system not found on Sony Vaio “I have an older Sony Vaio Laptop, model VGN-NR280E, that was loaded with the Vista operating system. I used it well,but recently, it shows an error when booting: operating system not found. What’s wrong with it? How can I fix it? Any help would be thanks.” How to fix error “operating system not found” on Sony Vaio? To fix the error operating system not found” on Sony Vaio, you can do as the following steps: Shut down laptop by holding the power button on the keyboard. Start laptop by holding the Assist button on the keyboard. The laptop will automatically go to “VAIO Care” mode of Sony Vaio. Choose “Start BIOS setup”, or you can press F2. Choose the tab “BOOT” on the Menu. Here you need to get into “Boot Configuration ''Boot Mode”, and you can see the current is UEFI. Press “Enter” and choose “Legacy” to change the value. In Extend Device Boot, change the value from “Disabled” to “Enabled”. ...