Windows 10 been installing at 99% for 2 hours

[Marvis Hollis]

How much longer should I wait, or is there a way of starting over.

 

[Chintan Gohel]

How much longer should I wait, or is there a way of starting over.

Leave it overnight while on charger. If by morning nothing has changed, restart the machine by long pressing the power button until it switches off and then startnormally