If you come across “Adobe Flash not up to date” error on your chromium netbook or laptop, then it due to fact that you have not updated your computer in a long time. Fortunately updating the chromebook is quite easy.
The best way to do it by downloading and using the chromebook recovery utility. This requires you to have a flash drive with 4GB or more capacity and a computer running chromium OS, windows or Mac computer with administrative rights along with chrome web browser installed. You can find the instructions here.
This will resolve the problem as it will also update the outdated Adobe Flash version causing problems at your end. You might be baffled that you are getting this error even though you bought a new chromebook. Well sometimes, the laptop is just sitting in the electronic store for weeks and weeks and when you buy it, you must update it to the latest version to ensure you do not get any errors.