Hi - I'm 65 years old and new to the forums so please excuse me if I am doing something wrong. I have recently done a fresh install of Windows 10 and reinstalled all my software and updated all Windows updates, including firmware upgrades and the latest Windows 10 Anneversary Update. All is working fine so far as I can see. I don't have any problems while I'm running on power. When I switch to battery and start using my SP3 with Adobe Reader Touch and also Chrome the programs just close randomly. They still show in the taskbar until I press on the program there, it opens and just as quickly closes down again, for good this time. I then have to go back and start all over again. Very annoying in Adobe Reader Touch as it starts from page 1 and I have lost where I have left off reading. It use to save where I had left off, it doesn't even do this now when I close the program. I did not have this problem when I was running Windows 8.1 - all worked as it should. I wonder if there is someone out there that can help me find the culprit that has stuffed up my SP3 experience. Thank you.