BIOS Update Error Not Enough Disk Space - Delete Files

[kuff1]

When trying to install BIOS update (ROM Family SSID 8917) I get an error stating there is not enough disk space and to delete files to increase space. However the BIOS is located on the motherboard and my C drive has 865 Gig free. Any ideas why this is happening and how to get around it?

[erico · Accepted solution]

The UEFI BIOS is actually located in its own partition in the boot disk.

It is labeled the EFI partition.

The problem you are facing is the the EFI partition is probably 100MB. You can verify that by using the Disk Management utility that is part of Windows 11)

To get around that issue in the past, I have extended the EFI partition size to 150 or 200MB.

"

To increase the EFI partition size in Windows 11, follow these steps precisely:

1. Shrink the C Drive Volume:

   • Open Disk Management.
   • Search for “Create and format hard disk partitions” and click the top result to open the Disk Management console.
   • Right-click on the C drive (your system drive) and select the Shrink Volume option.
   • Specify the amount of space you want to shrink from the C drive. This will create unallocated space.

2. Create a New EFI Partition:

   • Open Command Prompt with administrative privileges.
   • Use the diskpart command to create a new EFI partition:

     diskpart
     list disk
     select disk X (where X is the disk number containing your Windows installation)
     list partition
     select partition Y (where Y is the existing EFI partition)
     shrink desired=400 (shrink the existing EFI partition to create space for the new one)
     create partition efi size=500 (create a new EFI partition with the desired size, e.g., 500MB)
     format quick fs=fat32 label="New EFI" (format the new partition as FAT32)
     assign letter=Z (assign a drive letter to the new EFI partition)
     exit

3. Copy Boot Files:

   • Use the BCDboot command to copy boot files from the old EFI partition to the new one:

     bcdboot C:\Windows /s Z: /f UEFI

4. Delete the Old EFI Partition:

   • You can use third-party partition management tools like MiniTool Partition Wizard to delete the old EFI partition and reclaim the space.

Remember to back up your data before making any changes to disk partitions. Additionally, ensure that your system is backed up or create a system restore point in case anything goes wrong during the process."