(Edit: Originally this was a two problems question (the factory reset and the (cold) double boot), now it’s just the double boot thing (apparently)
caused by the RAM memory. The factory reset was fixed by itself.)
Recently I’ve noticed that when I turn on my computer it reboots after 3 seconds or so, while showing the mobo logo (“something goes wrong” and it reboots changing one of the options, that I know of, there may be other options changing). When I turn the computer off (every night before going to sleep), I tend to switch off the PSU and sometimes the power strip where it’s connected to (maybe the CMOS battery?).
It actually has happened three times, exactly the same thing. I think it’s when I don’t turn it on immediately after I wake up (meaning that when stays off for more then 9 hours, maybe 12 or more). When the reboot happens, it appears the recovery screen, the one that shows info about the mobo/firmware manufacturer and at the bottom it says enter setup to recover… When I go into the boot options I can see that inside secure boot the selected option is windows os…
I have an SSD where Manjaro is installed, then I have a hard drive with Windows 7 on a partition, the rest is for storing data. Windows was installed with the SSD disconnected so that it doesn’t mess with it, and I boot it through the linux grub.
I don’t have a clue as to why this is happening, but what I know is that long before this started I noticed lots of performance problems with firefox (mainly), I tend to have more than 10 tabs opened (RAM’s not the problem, I got 8GB), it may be the amdgpu driver (the one that is installed by default). Anyway I may need to open a different topic to address this other issue.
The thing is, I’m not paranoid until weird things start to happen…
Maybe I need to do some testing. Aside from checking the CMOS battery, do I have missed something out that’s worth checking? I’ve already changed some options (enabled hot plug for the SATA drives) and the next time it happens I’ll check if they’re enabled. And if they’re not, hat would mean that it’s resetting the options, and it probably be the battery, right?