Problem after upgrade

I have an Asus notebook X456UAK with integrated 4G ram, a free DDR4 slot and windows 10 The K in the model of my pc changes some things among them that its slot for RAM is DDR4 and not DDR3 as it would be in the model X456UA and according to the crucial page my laptop can support in the slot, a...

I have a problem with my HP 15-r249tu, windows 10 laptop. It needs to be plugged in to start, after that if I unplug, it works, the battery icon show empty, but clicking on it show's 100% battery. Earlier I had a different battery issue, when ever I charged the battery and it shows 100%...