everything you need to know, including how to enable/disable it, has been described.
The UEFI’s Compatibility Support Module, or CSM, is a part that enables compatibility with older BIOS systems. To put it simply, the CSM enables the use of older operating systems and option ROMs that do not support UEFI.
Is Launch CSM Enabled Needed?
The CSM option must be deactivated by default if your computer doesn’t run a legacy operating system; you don’t need to enable it.For instance, Windows XP does not support UEFI, whereas Windows 10 does. As a result, in order to boot your system regularly with Windows XP, you must enable the CSM option. However, with Windows 10, you do not need to do so because it supports UEFI.
How to activate CSM (Asus BIOS)
To access the BIOS menu, press and hold the F2 button and then the power button.
Press F7 to select “Advanced Mode” instead.
Select “Boot” from the menu.
Select “Secure boot.”
The dropdown menu next to “OS type” should be selected.
Choose “Other OS.”
Return to the previous menu now, then launch CSM (Compatibility Support module).
Select enabled from the dropdown menu next to “Launch CSM” by clicking on it.
You can choose “Save Changes & Reset” after clicking “Exit.”
How to activate CSM (AMI – American Megatrends BIOS)
When the computer turns on, press the “Delete” key to access the BIOS.
Activate the “Security tab.”
The “Secure Boot menu” can be found there (typically at the bottom).
By default, the “Secure Boot Control” must be turned on; to turn it off, press Enter and choose disabled.
Go to the “Boot” tab, which is located next to the “Security tab,” right away.
To select enabled, select the “Launch CSM” option after highlighting it.
Finally, click the “Save & Exit” option to save the settings.
You don’t need to go to the Security page because the Secure Boot Control is available in some motherboards’ “Boot” tab. You must visit this menu and choose “Legacy” because the Launch CSM option on certain motherboards is actually called Boot mode. If you have a different AMI motherboard, read this manual.
The CSM option is greyed out; why?
You probably neglected to disable Secure Boot if you are trying to enable the CSM option but are unable to do so because it is greyed out or if you just cannot locate it anywhere. Enable CSM after disabling Secure Boot and saving and exiting.
Meaning of the Error “Current Bios Settings Do Not Fully Support the Boot Device”
The present BIOS settings do not completely support the boot device, if you get that message. To access the BIOS Setup, click OK. You’re not alone; please follow the instructions below to solve it. Go to advanced > Boot > CSM parameters, then update the CSM settings to enable the boot device.
Step 1: Modify the CSM Settings
You must be familiar with CSM if you have read the entire article. You must modify the CSM settings in order to resolve the issue. The CSM option needs to be activated if you’re running a legacy operating system. If it’s already enabled, choose to disable it before re-enabling it, then save and exit.
Change the CSM option if it is currently set to Auto, then try rebooting your system.
Make sure you take the measures we’ve already mentioned to do that, and perhaps the problem will be remedied.
Method 2: Examine the storage device where the OS is stored.
Find the HDD or SSD that has the OS installed if you are utilising multiple ones. Once you’ve identified which storage it belongs to, unplug its cord from both locations and give it a gentle cleaning before replugging it in. Check to see if the cable is properly plugged in before attempting to start your computer.
A malfunctioning HDD or SSD may need to be replaced in particular circumstances, according to some sources.