2022年12月20日 星期二
Delete the EFI System Partition
https://www.tomshardware.com/how-to/delete-efi-system-partition-windows
Run (CMD) DOS mode
Open: diskpart
diskpark: list disk
diskpark: sel disk 2, for example
diskpark: list partition
diskpark: sel partition 1
diskpark: delete partition override
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How to Delete the EFI System Partition in Windows 10 or 11
By Avram Piltch published April 24, 2022
Save space and have one continuous partition.
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Windows 10 Disk Management
(Image credit: Future)
When you install Windows 11 or 10 on your PC's boot drive, the process automatically creates a partition called the EFI System Partition, which stores some critical files the computer needs to read at boot time. The EFI System Partition doesn't take up a lot of space, usually using only a few hundred megabytes (mine was 100MB at the time of writing). Because this partition is needed to boot, Windows doesn't, by default, allow you to delete it.
However, if you take an SSD or hard drive that was once a boot drive and want to completely reformat it to use as a data drive, you may want to get rid of the EFI System Partition so you can have one single, big partition for all of your files. Using the simple instructions below, you can delete the EFI System Partition in Windows 10 or 11. Just make sure you don't do this on your boot drive or you won't be able to boot!
Windows EFI System Partition
(Image credit: Tom's Hardware)
How to Delete the EFI System Partition in Windows
1. Launch Diskpart.
Launch diskpart
(Image credit: Tom's Hardware)
2. Enter list disk to see a list of all the connected drives. The drive number of the drive you want to delete from should be the same as it appears in the Disk Manager app.
Enter list disk
(Image credit: Tom's Hardware)
3. Enter set disk [Disk Number] where [Disk Number] is the number of the drive you want to delete from.
Enter set disk
(Image credit: Tom's Hardware)
4. Enter list partition.
Enter list partition
(Image credit: Tom's Hardware)
5. Enter sel parition [PARTITION NUMBER] to choose the reserved partition you wish to delete.
Enter list partition
(Image credit: Tom's Hardware)
6. Enter delete partition override.
Enter delete partition override
(Image credit: Tom's Hardware)
At this point, the EFI System Partition should be deleted. However, you should confirm by looking at the disk in the Windows Disk Management app (load it by searching for "disk management."). If it still appears, reboot and check again.
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