To protect your private information, the PIN is required to ensure your trusted identification.
Some people find it troublesome to key in PIN every time.
Now, you canenable/disable Require PIN for pairing when projectingbased on your situation with the following guidance.
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The Projecting to this PC is a useful feature on Windows 10 you might ignore.
What can this feature do?
How to use it?

Step 1: PressWin + Ito launch the configs window.
Step 2: SelectSystemand scroll down to find theProjecting to this PCtab on the left sidebar.
Step 3: you might changeRequire PIN for pairingby selecting options from the drop-down menu on the right pane.

There are three options:
Step 1: PressWin + Sand typeEdit Group Policyinto the search bar.
Step 3: Navigate toComputer Configuration>Administrative Templates>Windows Components>Connect.
Then, you’ve got the option to find theRequire pin for pairing policyon the right pane.
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Step 4: Double-click to edit the configs.
you could chooseNot ConfiguredorDisabledto disable Require PIN for pairing when projecting; selectEnabledto set the specific prefs.
Step 5: ClickApplyandOKin sequence to save the change.

But be careful when you change the registry keys.
Changes will be applied to your gear immediately once you confirm them.
Here is how to change the setting of requiring PIN for pairing.

Step 1: PressWin + Rto kick off the Run window.
Step 2: Typeregeditand hitEnterto bring up the Windows Registry window.
Step 3: Shift toHKEY_LOCAL_MACHINE>SOFTWARE>Policies>Microsoft>Windows.
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you’ve got the option to check whether there is a subfolder namedConnect.
If not, right-hit theWindowsfolder, then chooseNew>Keyto create a new folder and rename it asConnect.
Step 5: Rename this key asRequirePinForPairing.
Step 6: Double-click to fire up the edit window.
you could change theValue dataof this subkey to modify the options.
Step 7: tap on theOKbutton to save changes.
Afterward, it’s crucial that you reboot the computer to fully apply the changes.
you could set the policies and subkeys by yourself but be careful in operation.
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This article puts forward several ways to fix it.
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