Power on issues

[Simpsj17]

I recently changed my uefi setting on my msi gaming m5 to windows 10 and reformatted my Samsung 850 256gb ssd with a fresh windows install. And now after my computer is turned off and I go to turn it on I get a A2 error code on the mobo. I turn my computer back of with the power button and turn it back on and it starts just fine all of a sudden. Does this when it goes into hibernate mode as well. Any ideas? 

Build:

Nzxt noctis 450

MSI gaming m5

i5 6600k

2*8gb ddr4 ram balistix 

gtx 1070 msi gaming x

nzxt kraken 61x

samsung 850 evo 256gb ssd

650w evga p2 psu

 

 

[EunSoo]

Try moving your SSD to a different SATA port on your motherboard. If it still doesn't work, try doing the same to your other drives, if you have any

[Simpsj17]

Could my secondary drive need to be reformatted to?

[Simpsj17]

Solved with windows update so yeah....