I have a Surface Pro3. For the past month or so I have had increasing problems waking it up from sleep, and for the past 3 days I have been getting the blue screen of death, CRITICAL_PROCESS_DIED, every time I turn it on or wake it from sleep, and also at sudden 30-60 minute intervals while I am working. None of the fixes suggested on other sites have worked. I have tried uninstalling the latest pen setting driver and running scannow, dism scanhealth and restorehealth commands. My computer came with Windows 8.1 but it upgraded to Windows 10 soon after the upgrade came out--last August I think. I have my Windows update settings set on automatic, so it updates regularly and a check of updates shows that it is up to date. Virus and malware scans turn up nothing. Starting in Safe Mode/Network and looking up device manager I find three items with yellow triangles. These are Generic PnP Monitor, Marvell Network Controller, and Surface Cover Telemetry.The yellow-triangled devices all say that their drivers are updated to the most recent version as well. Where do I go from here?