Why doesn't my Windows 10 screen display fill the monitor?

[WPCentral Question]

Windows 10 screen display does not fill monitor

Now have two 1" black bars on monitor. Am not a computer wizard - just switch and use - any simple answers to help out? Have been looking through answers on web but lost at what to do. Thanks

 

[alakazan]

Re: Windows 10 screen display does not fill monitor

settings> system> display> advanced display settings ( there should bee options like 1920x1080. change that to your monitor size)

 

[Kwilkyn]

Re: Windows 10 screen display does not fill monitor

Thanks but I have tried that. Each time I change the screen resolution (and tick apply) it reverts back to the original input of 1024 x 768.