Contribution d'origine par : Dan A+ ,
I would first try a hardware reset, and then contact Lenovo directly for further assistance. The hardware reset may delete some files in the Chromebook 's Downloads folder, however. To perform the reset, first place the touchscreen on the desired Chromebook. Then press and hold the Refresh button on the keyboard (it looks like a circular arrow.) Then tap the Power button. Release the Refresh button when the Chromebook starts up. If this doesn't work, then I would call Lenovo's tech support line at 1-855-253-6686, Option #1. It may be a proprietary configuration to exert control over how their products are used, like you said.