How to fix an error saying, 'no bootable device found', but when I switch to legacy in Bios setup, it gives me an error saying 'invalid partition table'? My laptop is a
![FIX: Dell Laptop - Operating System Loader signature not found/invalid. (Solved) - wintips.org - Windows Tips & How-tos FIX: Dell Laptop - Operating System Loader signature not found/invalid. (Solved) - wintips.org - Windows Tips & How-tos](https://www.wintips.org/wp-content/uploads/2018/01/image-42.png)
FIX: Dell Laptop - Operating System Loader signature not found/invalid. (Solved) - wintips.org - Windows Tips & How-tos
![Secure boot failed operating system is invalid не могу установить Винду с диска как решить? | WindowsRu.com Secure boot failed operating system is invalid не могу установить Винду с диска как решить? | WindowsRu.com](https://windowsru.com/img/26/image-204619888dbee4feec6cc7de4cfacf99.jpg)
Secure boot failed operating system is invalid не могу установить Винду с диска как решить? | WindowsRu.com
![FIX: Dell Laptop - Operating System Loader signature not found/invalid. (Solved) - wintips.org - Windows Tips & How-tos FIX: Dell Laptop - Operating System Loader signature not found/invalid. (Solved) - wintips.org - Windows Tips & How-tos](https://www.wintips.org/wp-content/uploads/2018/01/image-43.png)