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Technical Articles

System Tutorial

Fix: Webcam not working in Windows 11

Ifyourwebcamisn'tworkingonWindows11,trythesesteps:1.Checkcameraprivacysettings.2.Updateorreinstallthewebcamdriver.3.RuntheHardwareandDevicestroubleshooter.4.Testthecamerainanotherapp.5.Disableandre-enablethecamerainDeviceManager.

Aug 30, 2025 am 08:31 AM

Webcam

How to fix the black screen issue in Win11

IfyouencounterablackscreenonWindows11,trythesesteps:1.RestartWindowsExplorerviaTaskManager.2.BootintoSafeModeandrollbackthegraphicsdriver.3.UseSystemRestoretorevertrecentchanges.4.Updateorreinstalldisplaydrivers.5.DisableFastStartuptoresolvebootissue

Aug 30, 2025 am 08:29 AM

Where to find the product key for Win11

IfyouneedtofindyourWindows11productkey,trythesesteps:1.CheckyourMicrosoftaccountataccount.microsoft.com/devices.2.UseCommandPromptwithadminrightsandrun:wmicpathsoftwarelicensingservicegetOA3xOriginalProductKey.3.Lookforastickeronyourdeviceorintheorig

Aug 30, 2025 am 08:26 AM

win11 product key

How to disable notifications in Win11

IfWindows11notificationsaredistracting,disablethemby:1.TurningoffallnotificationsinSettings>System>Notifications.2.Managingapp-specificalertsunder"Notificationsfromapps."3.UsingFocusAssisttotemporarilyblockinterruptions.

Aug 30, 2025 am 08:09 AM

win11 notify

How to Fix Windows Printer Problems After Update

Ifyourprinterisn'tworkingafteraWindowsupdate,trythesesteps:1.RestartthePrintSpoolerservice.2.Reinstallthelatestprinterdrivers.3.RunWindowsPrinterTroubleshooter.4.Checkforpendingupdates.5.Installdriversincompatibilitymode.

Aug 30, 2025 am 08:04 AM

What to do if Win11 Group Policy Editor is not found? The solution for gpedit.msc issues in Win11 Home

Ifgpedit.mscismissinginWindows11Home,it’snotincludedbydefault.Tryusingthird-partyscriptstoaddit,usebuilt-intoolslikeSettingsorregedit,orupgradetoWindows11Proforofficialsupport.

Aug 30, 2025 am 07:50 AM

What to do if you need to uninstall a Win11 update? The solution for rolling back a Windows update

IfarecentWindows11updatecausesissues,uninstallitusingthesemethods:1.UseSettings>WindowsUpdate>Uninstallupdates.2.RemoveviaControlPanel>Programs>Viewinstalledupdates.3.RollbackwithSystemRestoreifarestorepointexists.4.UseCommandPrompt(Admin

Aug 30, 2025 am 07:46 AM

win11 Uninstall updates

How to Fix Slow Internet on Your Windows PC

First,checkforbackgroundappsusingbandwidthbyopeningTaskManagerandsortingtheProcessestabbynetworkusage,thenclosehigh-usageappslikeWindowsUpdateorcloudsyncservices;second,resetnetworksettingsviaSettingsorCommandPromptusingnetshandipconfigcommandstorest

Aug 30, 2025 am 07:33 AM

慢速網(wǎng)絡(luò)

An Introduction to SELinux for System Administrators

SELinuxisamandatoryaccesscontrolsystemthatenhancesLinuxsecuritybyenforcingpolicy-basedpermissionsbeyondtraditionalDAC;1.Itusessecuritycontexts(user:role:type:level)wheretypesforfilesanddomainsforprocessesdefineaccessunderpolicyrules;2.ModesincludeEnf

Aug 30, 2025 am 07:24 AM

selinux System Management

How to enable Hyper-V on Windows 10 Home

YoucannotenableHyper-VonWindows10Homeduetolicensingrestrictions,nothardwarelimitations.2.UseWSL2astherecommendedalternative,whichleveragesthesameHyper-VvirtualizationcoreforrunningLinuxdistributionswithnear-nativeperformance.3.TosetupWSL2,openPowerSh

Aug 30, 2025 am 07:17 AM

How to find your Windows version and build number

PressWindows I,gotoSystem>AbouttoseeEdition,Version,OSbuild,andExperienceinSettings.2.PressWindows R,typewinver,andpressEntertoquicklyviewbasicversionandbuildinfoinadialogbox.3.OpenCommandPromptorPowerShellandtypevertoseetheversion,oruseGet-Comput

Aug 30, 2025 am 07:16 AM

system message

How to fix 'KERNEL_DATA_INPAGE_ERROR' in Windows

RunCHKDSKtocheckfordiskerrorsusingchkdskC:/f/randrestartifprompted.2.TestRAMwithWindowsMemoryDiagnosticbyrunningmdsched.exeandcheckresultsinEventViewer.3.Repaircorruptedsystemfilesbyrunningsfc/scannow,thenDISM/Online/Cleanup-Image/RestoreHealth,follo

Aug 30, 2025 am 07:15 AM

How to downgrade from Win11 to Win10

IfyourecentlyupgradedtoWindows11andwishtoreturntoWindows10,actwithin10days:openSettings,gotoSystem>Recovery,andclick"GobacktoWindows10."Afterthisperiod,useaWindows10installationUSBcreatedviaMicrosoft’sMediaCreationTooltoperformacleanrein

Aug 30, 2025 am 07:08 AM

win10 win11

How to calibrate your display for better colors in Windows

UseWindowsDisplayColorCalibrationToolbysearching"calibratecolor"andfollowstepstoadjustgamma,brightness,contrast,andcolorbalance,savingtheresulting.icmprofile.2.Calibrateintherightenvironmentwithneutrallighting,avoiddirectsunlight,letthemoni

Aug 30, 2025 am 06:49 AM