I have the same issue but I am in UEFI mode and still won't save the bios for secure boot enabled. Thoughts
I can't enable Secure Boot at all...
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(201.6, 39%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EK%3C/text%3E%3C/svg%3E)
Kay
0
Reputation points
Hello everyone. I'm trying to enable Secure Boot on my Windows 10 for days now, without any luck.
I've followed every step of every guide, and it is in fact an easy process, yet my PC won't enable it.
I go to my BIOS, enable Secure Boot (the BIOS option is to enable UEFI), save and restart, but when I go to my System Information, it says that it isn't enabled, and the BIOS mode is Legacy.
I've heard that in order for it to properly work, I need to disable CSM, but here's another problem...
When I do disable CSM, my windows won't boot, and instead go to BIOS mode...
It's not just that (although It's my main issue currently and I need to fix it), my windows has been weird lately, my internet icon won't show, I can't update windows, and every time I open the internet window it crashes and closes. Although internet is working fine via cable, but in many programs like AMD Radeon, it says that there's no internet.
When I go to Network settings I get an error there that says something like "Dependency service or group not working."
Thank you.
Windows for home | Windows 10 | Windows update
5 answers
Sort by: Most helpful
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(169.60000000000002, 81%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EL%3C/text%3E%3C/svg%3E)
Ltelford 0 Reputation points2025-09-10T20:37:45.61+00:00 -
DaveM121 871K Reputation points Independent Advisor2025-08-07T12:08:11.1466667+00:00 That is the dialog from the Games (E) drive, not the C drive, please provide a screenshot of the dialog for the C drive.
-
Kay 0 Reputation points
2025-08-07T12:14:15.38+00:00 Oh dear lord I feel so stupid right now, I swear I clicked on C earlier... double checked, It is on MBR. I will use the info in your previous reply and try that.
Thank you very much. -
Sign in to comment -
-
DaveM121 871K Reputation points Independent Advisor
2025-08-07T12:02:06.49+00:00 Right click your Start Button and open Disk Management
In the bottom pane, to the left of that drive is a grey box with the Disk number, right click that and select Properties.
On the resulting dialog, select the Volumes tab, please provide a screenshot of that tab.
-
Kay 0 Reputation points
2025-08-07T12:03:50.25+00:00 Thought I already sent the screenshot in my earlier comment but it appears I need to confirm attaching it, my bad.
Sign in to comment -
-
DaveM121 871K Reputation points Independent Advisor
2025-08-07T11:54:15.3966667+00:00 Thank you for the screenshot, I see the problem.
Windows 10 is installed in Legacy BIOS mode, that means you cannot enable Secure Boot or switch to UEFI BIOS because your drive will have an MBR partition style, and UEFI requires the drive to have a GPT partition style, it is a big job to convert the drive.
There are two ways to fix this:
1
You can try to convert the drive form MBR to GPT using the mbr3gpt tool in Windows, Microsoft reports the drive can be converted without data loss, but you should backup your personal files before attempting this method
https://docs.microsoft.com/en-us/windows/deployment/mbr-to-gpt
Then, when the drive is converted, boot into BIOS and change to UEFI Mode, then enable Secure Boot and turn on TPM if necessary
2
Backup all your files, then clean install Windows 10 in UEFI Mode by booting form a bootable USB, then re-install all your software.
-
Kay 0 Reputation points
2025-08-07T11:59:47.74+00:00 Thank you for the information, but I think my drive is actually already GPT.
I'm not entirely sure so I took a screenshot. It says GPT, is that it or is it something else?
Sign in to comment -
-
DaveM121 871K Reputation points Independent Advisor
2025-08-07T11:44:40.9466667+00:00 I need some more information about your system and the way Windows 10 is installed, click your Start Button, then jsut type msinfo and press Enter, please provide a screenshot of the resulting System Information window.