The following part introduces how to fix the Snip and Sketch tool not covering the whole screen issue.

Press theWindows+Ikeys together to openSettings.

Go toSystem>Display>Scale & layout.

change the monitor’s scale

In theScalepart, smack the drop-down menu to change the scale level.

Thus, you’re able to change the second monitors resolution.

Here is how to do that:

2.

change the second monitor’s resolution

Go toSystem>Display>Scale & layout.

Under theDisplay resolutionpart, you might change the second monitors resolution.

You may want to use multi-screen on Windows 11.

How to Fix Windows 11 Not Detecting Second Monitor [4 Ways]

However, you may encounter the Windows 11 not detecting second monitor issue.

you gotta wrap up the tool and relaunch it.

Go toApps>Installed apps.

click Repair or Reset

Find Snipping Tool and right-nudge the three-dot next to it to chooseAdvanced options.

And you’ve got the option to use MiniTool ShadowMaker to back up your files to protect them.