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I just created an USB drive and would like to check if it's correctly bootable without rebooting my actual computer. How should I do?
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Check USB Drive Bootable Status From Disk ManagementSelect the formatted drive (“disk 1” in our example) and right-click to go to “Properties.” Navigate to the “Volumes” tab and check the “Partition style.” You should see it marked with some kind of boot flag, such as Master Boot Record (MBR) or GUID Partition Table.
The key to finding out if the installation USB drive is UEFI bootable is to check whether the disk's partition style is GPT, as it's required for booting Windows system in UEFI mode.
To boot-up a device, it must be formated with a partition that begins with a specific code on the first sectors, these partition area are called MBR. A Master Boot Record (MBR) is the bootsector of a hard disk. That is, it is what the BIOS loads and runs, when it boots a hard disk.
Press Windows + R to bring up the Run command box. Type in the command msconfig and press Enter , This will bring up system configuration settings. Click on the 'Boot' tab.
While it won't show if the stuff on the filesystem is capable of handling the whole boot thing you can check the boot flag with fdisk -l <drive> from a shell on a reasonably good *nix. (Which essentially tells the bios if it should try to boot the thingie or not.)
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