Dec 29, 2018 · The Compatibility Support Module (CSM) is a component of the UEFI firmware that provides legacy BIOS compatibility by emulating a BIOS environment, allowing legacy operating systems and some option ROMs that do not support UEFI to still be used. CSM also provides required legacy System Management Mode (SMM) functionality, called ...

Jan 19, 2019 · change boot mode from legacy/CSM to UEFI, change boot order, so windows boot manager is first, boot into windows. You run mbr2gpt command this way: (replace X with Disk number of your OS drive. Check Disk number in Disk Management) first check, if there are any issues mbr2gpt /validate /disk:X /allowFullOS then perform conversion

Jul 20, 2013 · By disabling the CSM module Windows will read and utilize the M.2-specific UEFI driver. 1- The M.2 drive has to be the only drive installed. 2 - Go into the bios, under the boot tab there is an option for CSM, make sure it is disabled. 3 - Insert a USB memory stick with a UEFI bootable ISO of Windows 10 on it, USB3 is quicker but USB2 works also.

Oct 2, 2019 · So with disabled CSM you can boot/install in UEFI mode only. Windows in UEFI mode requires boot drive to be partitioned in GPT. Windows in legacy mode requires boot drive to be partitioned in MBR. That's pretty much all, you have to know (about UEFI/legacy differences).

Jul 4, 2021 · Disable CSM completely. CSM is legacy boot. The board can always boot uefi, but you can additionally enable legacy support with CSM. Also don't worry too much, just wait until 11 actually releases, I can also guarantee theres a workaround. In fact, I already know people who installed windows 11 on legacy, without TPM, and without secure boot.

Dec 10, 2021 · The only way the SATA Controllers work and are initialized is setting CSM Enabled and Storage Legacy only in BIOS. fTPM is enabled and booting works with "Secure Boot" in Windows UEFI mode and in mode Other OS. Setting CSM Disabled results in a hanging System during boot, the Controllers are not enabled, none of the 20 disks are shown in BIOS ...

Oct 13, 2020 · If GPT drive contains windows partition, then you can possibly make it UEFI bootable by creating bootloader partition manually. If MBR drive contains windows partition, then you can convert your system to UEFI bootable with mbr2gpt utility (assuming you have windows 10 and not windows 7).

Sep 23, 2021 · My OS is installed in UEFI mode, so being blocked by legacy BIOS isn't the issue. I need to disable CSM so I can enable Secure Boot for some applications to work in Windows 11. I have already tried restarting resetting the CMOS and reinstalling the battery, but in both cases when I retry the steps to disable the CSM, the same issue reappears.

Apr 25, 2018 · So I tried to change a CSM setting, it was set to disabled.. I enabled it and restarted the pc. Now I can't load into BIOS. When I restart my pc it's stays black for a while, and if I dont push any buttons I get into windows after a while. But if I press on "del" all the time to try to get into bios it doesnt do anything for me.

Oct 4, 2021 · best way to do: clean install windows on uefi only mode (disable any csm and legacy option, save and exit, go to secure boot and enable it, then install the keys, accept/save and boot to bios again to make sure everything is uefi only and the secure boot is enabled on USER mode, and keys is installed (option would only be uninstall/remove keys).