ESP disk space not enough

How large is the HDD/SSD in your system and how much free space is left on the drive? This web page at makeuseof may help.

It was a Samsung 970 1tb, it had originally at least 600gb left, when I replaced it with Intel 660p 1tb it was able to update the bios 1.7.1 to 1.9.0, and my guess it's the SSD chip may have failed. Thank goodness I had a warranty for SSD to get another brand of SSD.

Doing a little Googling around... In all likelihood it's NOT a hardware failure. Apparently you're running out of space in the EFI system partition, which you don't normally have access to. I'm guessing that over time that partition can fill up, if it isn't managed well by Windows and tools like Dell's BIOS updater. (If the author had taken more time to craft that error message, we'd at least be less confused at this point.)

I haven't yet looked into ways to access and edit the EFI partition, but you don't want to fool around in there without knowing what you're doing (I certainly don't). It's possible to resize it, but that (depending on your layout) requires resizing C as well, and again, potentially invites trouble. I haven't looked at that yet either but it's possible.

You can AVOID dealing with the EFI partition by downloading the .rcv version of the BIOS update from Drivers & Downloads and installing the update from USB media, though when it comes time for your next BIOS update you may have the same issue again. Another option would be to reinstall Windows from scratch, making sure to delete the partition so it's re-created during installation. This gives you a fresh un-cluttered EFI partition along with your fresh un-cluttered Windows installation, though restoring your files and re-installing your apps can be rather a pain as well.

Just want to clear up that when I suggested installing the .rcv version of BIOS update to avoid expanding the EFI partition, that's based on Google research, not any personal experience. I can't personally guarantee that it will succeed where the installation utility that runs in Windows failed.

After seeing your post and having problems with Dell Bios updates for years, I decided to look around.  I was able to update using the Flash drive so all it good, but I checked the System EFI partition for what might be in that.

There is a Dell folder with several layers and in one of them are two Bios updates labeled BiosPre_IMG.rcv and CurrBIOS_IMG.rcv or at least something close.  If the update needs to replace those files, maybe it is not able to do so.

I am currently thinking this might be involved with other failures, but no message is being given, the update just reboots back into the Desktop.  I also notice the msinfo32.exe utility show the correct updated Bios, but the firmware section of the Device Manager still shows the older version.

@NJDave​ i am running into the same problem even after downloading it from the provided link. i am also having troubles with one windows 11s updates. 24h2.