Please be very careful while following the below command lines to delete EFI partition: Delete EFI System Partition with DiskpartĪs a command-line utility, DiskPart is sort of complex for average users to apply. To avoid unnecessary file loss, make sure you have backed up the ESP files in advance. One is to delete with the Windows built-in tool - Diskpart and the other is to apply a simple third-party tool - EaseUS Partition Master. How to Delete EFI (System) Partition in Windows 11/10/8/7 įor users who want to delete the EFI system, there are two methods available. If you want to delete the EFI partition and install a new Windows OS, you can directly reinstall the OS. If you installed two Windows systems on your PC and want to delete the ESP, freeing up disk space and just keeping one OS, follow methods in Part 3 for help. If your hard drive is getting full, follow to learn what is taking up space on the hard drive and use the right ways to free up disk space. If you want to keep your Windows OS running smoothly, don't do anything to the EFI system partition. When a computer is booted, UEFI firmware loads files stored on the ESP(EFI system partition) to start installed operating system and various utilities."
Normally, you may see more EFI system partition on Windows 10.Īccording to Wikipedia, " EFI system partition (ESP) is a partition on a data storage device which is used computers adhering to UEFI (Unified Extensible Firmware Interface). It takes about 100M or 200MB or so with no drive letter. What Is EFI System Partition (ESP)ĮFI partition, also known as EFI system partition, short for ESP, is automatically generated when you successfully install Windows OS on a GPT disk in your computer. What Will Happen if You Delete an EFI Partition The "Delete Volume" may also gray out when you try to delete the OEM partition, recovery, or system reserved partition. This page will talk about how to delete the EFI system partition on Windows, as well as the must-know information about the EFI system partition, including what EFI is and what happens when the partition is deleted. But you can't delete EFI system partition in Windows because the "Delete Volume" feature is grayed out. Usually, you can easily delete a partition in Disk Management.
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