The Recovery partition stores Winre.wim, an image needed to boot into the Windows Recovery Environment (WinRE). If the recovery partition is small, the system might fail when servicing the Winre.wim image. For instance, you may encounter error 0x80070643 when installing WinRE security updates if the recovery partition is not big enough. The official documentation mentions … Read more
Summary: This post explains how to increase the size of the EFI partition to 250 MB without using any paid software.
The EFI system partition stores the boot configuration database (BCD) and the boot files needed to boot a UEFI system. By default, the Windows setup creates a 100 MB EFI partition, which may be insufficient sometimes. Read more
When you open Disk Management, the volume size (i.e., capacity) may be misreported in the top pane. The bottom pane, which shows the graphical view, may report the capacity correctly for each volume.Read more
When you attempt to enable Windows RE by running the reagentc /enable command, the following error may be shown: REAGENTC.EXE: Operation failed: 3 REAGENTC.EXE: An error has occurred. When you attempt to create a USB recovery drive, the following error occurs: We can’t create a recovery drive on this PC Some required files are missing. … Read more
If you’ve inadvertently converted your disk to a dynamic disk using Disk Management, you can revert it to a basic disk using the built-in diskpart command. Dynamic disks have been deprecated in Windows and are no longer recommended. Here’s a Microsoft article that explains how to convert a dynamic disk to a basic.
Change a dynamic disk back to a basic disk | Microsoft Learn
However, the biggest drawback to using the built-in tools is that volumes on the dynamic disk must be deleted before converting it to basic.Read more
Each partition type is strictly identified by a GUID number. For example, the data partitions (“Basic data partition”) are identified by the GUID ebd0a0a2-b9e5-4433-87c0-68b6b72699c7. The EFI partition has the GUID c12a7328-f81f-11d2-ba4b-00a0c93ec93b.
However, on some systems, the EFI partition may have an incorrect ID assigned for unknown reasons. As a result, the EFI partition may appear as a “basic data partition” when you open Disk Management.Read more
When you try to extend a volume in Disk Management, the Extend Volume option may be grayed out even though there is unallocated space on the disk.Read more
When you use the Disk Management console to shrink the volume in which the Operation System is installed, you’re unable to choose a value (to shrink) beyond a limit. In the shrink volume dialog, the following message is displayed: You cannot shrink a volume beyond the point where any unmovable files are located. See the … Read more