This can effectively protect your system against unauthorized access.
However, several users complained that their screens remained active after the timeout they set.
Here we provide you with a couple of efficient solutions to assist you in resolving this issue.
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Have you ever encountered the second monitor lagging issue when playing games or working?
Now this post shows you the best practice solutions.
Solution 1.

The major steps to change lock screen timeout in Windows 10 are as follows.
Press theWindows + Ikey combination to open configs.
In the new window, move on to thePower & sleeptab.

See Also:How to Change Lock Screen Timeout in Windows 11 | 4 Ways
Solution 2.
Change Screen Saver controls
Misconfiguration of the screen saver controls may trigger lock screen timeout not working.
To rule out this cause, you might try the steps below to check and change screen saver controls.

In the Windows search box, typechange screen saver.
Then click it from the best match outcome to open it.
ClickApplyandOKsequentially to make this change take effect.

Solution 3.
Press theWindows + Rkeyboard shortcut to fire up the run window.
In the new window, typegpedit.mscand pressEnter.
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User Configuration > Administrative Templates > Control Panel > Personalization.
In the right panel, double-clickEnable screen saver.
verify to check theEnabledoption, then clickApply>OK.
Here it’s possible for you to see how to run this troubleshooter.
Step 1.Open Windows Settingsand select theUpdate & Securityoption.
In theTroubleshootsection, clickAdditional troubleshooters.
In the next window, scroll down to find and clickPower>launch the troubleshooter.
Wait until the process is completed.
Install Windows Updates
Windows updates resolve reported bugs and add new features.
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