Does enabling Fast Boot have any effects on an Ubuntu installation? [duplicate]

I'm not running a dual boot system, just Ubuntu on an old laptop that had Windows on it, I've noticed Fast Boot enables in BIOS (UEFI), does it do any harm if I keep it enabled and run Ubuntu only?

Yes, it can sometime cause conflicts where the underlying Windows structure has "grabbed" control of certain aspects but where UEFI is present on a PC using Linux exclusively, in particular ubuntu, UEFI has good support. Refer to this article for more information.

If windows is present in a dual boot environment,best to make sure that Windows is fully closed down and there are two methods for doing so:

• Simply hold the Shift key and then click Shut down option in the Start menu;
• Perform a full shut down using the command prompt

reference