I bought two of these in November 2016 for myself and my daughter. Both of us have had this issue - most recent (Jan 2018). I use my RCA tablet daily (when it turns on). When this first happened (on each) I opened tickets, but eventually that would have resulted in sending the device out (not my preference). So, I played with the device and maybe have understood the following (which I write in hopes others can benefit): I "sleep" the tablet, and do not "turn-off." I do not let it time itself off. So, when I later press the power button, it seems to turn on predictably. When it does seem not to turn on, I try three times (almost like a on-off-on) - mostly works. When repeated attempts fail, I unplug power (usually keep powered at all times - will unplug during active use). I then plug in 5 minutes later and look for blue-light; try power on again. If that does not work, I unplug and drain battery (1 day or less); then plug-in and allow charging time. Usually, by then it cuts on (might need a long 30 second hold on power button, followed by short cut on). I do not know why this inexpensive tablet does this; it seems to be related to full-power charge. Then there are times I think Windows causes update issues. Whatever the reason, I understand the frustration, but offer this post hoping it helps.