Asus motherboard boots up to bios menu and windows 10 shows error when logging in

[Andres_8]

I have Windows 10 installed in my mx100 crucial 256gb ssd, which I think is refurbished, but I got it at the same Price a 120gb shitty ssd was, because it was on sale, but now, almost every time I boot up my pc it sends me to the bios menú, then I press save and exit, sends me to Windows, log in, and sometimes shows me a log in error and sends me to a guest account, then I have to press log out and log in in my regular account (I have Windows 10 log in with a Hotmail account)

help pls

 

[t53186]

Always going to the bios menu usually means the cmos battery has died. It's on the motherboard, probably a cr2032 small flat round battery. Fix that first

 

[Andres_8]

Always going to the bios menu usually means the cmos battery has died. It's on the motherboard, probably a cr2032 small flat round battery. Fix that first

and how do I fix it? it doesnt happen all the time, sometimes it boots to the bios menú becuase it doesnt recognize the ssd, it doesnt show up in the boot menú, when I click save and exit, it boots up normally, maybe its an ssd problem

 

[t53186]

Ah, might not be the battery but they do go bad just like any other battery, odd that the SSD no longer appears as a boot device unless you save and exit. Anyway on your motherboard you will see a "coin" battery that slips in to slot either flat on the board or standing up vertical, that's the cmos battery and is used to retain settings in system board memory. It slides out, does have a positive/negative polarity side like all batteries, slip in a new one, update setting in bios, save and exit. Costs a couple of dollars. Then move on to SSD diagnostics