adobe added a thing to ask you to uninstall flash every few reboots.
this is a Scheduled Task, it in the root folder called "Adobe Flash Player NPAPI Notifier" and "Adobe Flash Player PPAPI Notifier"
just need to find this task in the scheduled tasks list using its rather annoying API, and set it to disabled,
or you can just use 'schtasks.exe /Change /TN "Adobe Flash Player NPAPI Notifier" /Disable'