Thursday, August 28, 2025

HP Pavilion 15 Laptop Keyboard Not Working

HP Pavilion 15 Laptop Keyboard Not Working


To fix an unresponsive HP Pavilion 15 keyboard, first restart the laptop and test it after holding the power button for 15 secondsNext, check for physical obstructions or damage, then clean the keyboard area. Try updating or reinstalling the keyboard driver in Device Manager and run the Windows keyboard troubleshooter. If the keyboard still doesn't work, run the HP built-in component test to determine if the issue is hardware-related, requiring professional service. 

1. Perform Basic Troubleshooting
  • Restart your laptop: A simple restart can often resolve temporary software glitches. 
  • Power Reset: Turn off your laptop, disconnect the power adapter, and press and hold the power button for 15 seconds. Wait for a few seconds, then plug in the power adapter and restart the laptop. 
  • Check for Physical Damage and Clean: Inspect the keyboard for dirt, dust, or debris that may be causing issues. Turn the laptop off, disconnect the power, and use compressed air to blow out any dirt. You can also use a soft brush or a slightly damp microfiber cloth to clean the keys, allowing the laptop to dry completely before use. 
2. Update or Reinstall Keyboard Drivers
  • Access Device Manager: Right-click the Start button and select Device Manager. 
  • Locate the Keyboard: Expand the Keyboards category. 
  • Update Driver: Right-click your keyboard driver and select Update driver, then choose Search automatically for drivers. 
  • Uninstall and Restart: If updating doesn't work, right-click the driver again and select Uninstall device. Restart your computer, and Windows will automatically reinstall the driver. 
3. Run Diagnostics and Troubleshooters
  • HP Component Test:
    After restarting the laptop, press the Esc key repeatedly to open the Startup Menu. Select F2 for System Diagnostics, then choose Component Tests and the Keyboard test to check for hardware faults. 
  • Windows Troubleshooter:
    Go to Settings > Update & Security (or System in Windows 11) > Troubleshoot > Additional troubleshooters. Run the Keyboard troubleshooter and follow any on-screen instructions. 
4. Check BIOS/UEFI Settings 
  • Enter BIOS/UEFI:
    Press Esc repeatedly at startup to open the Startup Menu, then press F10 to access the BIOS Setup.
  • Load Default Settings:
    Navigate to the Exit tab and select Load Default Settings, then press F10 to save and exit.
5. Seek Professional Help 
  • If the HP component test indicates a hardware failure or the issue persists after these steps, contact HP support or visit an authorized service center for professional repair.
Thanks for Reading...
Masud Rana

Tuesday, August 19, 2025

WhatsApp KeyBoard Shortcuts list but not limit to.

 Whatsapp About Keyboard Shortcuts

Keyboard shortcuts are keys or combinations of keys that provide an alternative way to do something that you’d typically do with a mouse.

To perform each of the following actions, press the corresponding keys at the same time.

Web shortcuts

ActionWindowsMac
Mark as UnreadCtrl Alt Shift UCmd Ctrl Shift U
MuteCtrl Alt Shift MCmd Ctrl Shift M
Archive ChatCtrl Alt Shift ECmd Ctrl Shift E
Pin ChatCtrl Alt Shift PCmd Ctrl Shift P
Search ChatCtrl Alt Shift FCmd Ctrl Shift F
New ChatCtrl Alt NCmd Ctrl N
Next ChatCtrl Shift ]Cmd Ctrl Tab
Previous ChatCtrl Shift [Cmd Ctrl Shift Tab
Close ChatEscapeEscape
New GroupCtrl Alt Shift NCmd Ctrl Shift N
Profile and AboutCtrl Alt PCmd Ctrl P
SettingsCtrl AltCmd Ctrl ,
Emoji PanelCtrl Alt ECmd Ctrl E
Gif PanelCtrl Alt GCmd Ctrl G
Sticker PanelCtrl Alt SCmd Ctrl S
Extended SearchAlt KCmd K
Lock ScreenCtrl Alt LCmd Ctrl L

Keyboard shortcuts are keys or combinations of keys that provide an alternative way to do something that you’d typically do with a mouse.

To perform each of the following actions, press the corresponding keys at the same time.

Keyboard shortcuts

ActionKeyboard shortcut
New chatCtrl N
Close chatCtrl W
New groupCtrl Shift N
SearchCtrl F
Search in chatCtrl Shift F
ProfileCtrl P
Toggle muteCtrl Shift M
Toggle readCtrl Shift U
Emoji panelCtrl Shift E
GIF panelCtrl Shift G
Previous chatCtrl Shift Tab
Next chatCtrl Tab
Open chatCtrl 1-9

Note: If you receive a voice call while WhatsApp for Windows is minimized, you will receive a notification. To interact with the notification, press Windows Shift V.
Keyboard shortcuts are keys or combinations of keys that provide an alternative way to do something that you’d typically do with a mouse.
To perform each of the following actions, press the corresponding keys at the same time.

Shortcuts

ActionShortcut
New chatcommand N
New group chatcommand shift N
Search chats/calls/statuscommand option F
Search messages in chatcommand F
Make chat text largercommand +
Make chat text default sizecommand 0
Make chat text smallercommand -
Mute/Unmute during callcommand option M
Toggle camera on/off during video callcommand option V
Archived chatscommand shift E
Settingscommand ,
Hide chatcommand shift W
Next chatcommand shift ]
Previous chatcommand shift [

https://faq.whatsapp.com/6204576529560565/?helpref=uf_share

Thans for UNderstanding...

Masud Rana


Monday, August 18, 2025

Issue for The error "Symmetric Key Derivation Function Version KDFv1 is invalid"

Issue for the error  "Symmetric Key Derivation Function Version KDFv1 is invalid" 

The error "AADSTS5000611: Symmetric Key Derivation Function Version KDFv1 is invalid" indicates that your device is using an outdated and unsupported cryptographic algorithm (KDFv1) for authentication with Azure ADTo resolve this, you need to update your device with the latest Windows updates and security patches including MS Office online update.

The “Symmetric Key Derivation Function version ‘KDFV1’ is invalid” error means that your device or software is trying to use an older and now unsupported cryptographic algorithm called KDFv1 for key derivation. A key derivation function (KDF) is a security algorithm used to generate encryption keys from a secret source like a password or master key. KDFv1 is an older version that Microsoft is phasing out for security reasons, so newer updates might reject it to keep your system safe.


To resolve this, your device needs to move to a more current supported version of the key derivation function, which often means installing the latest Windows updates or security patches. If your system can’t upgrade fully (like to Windows 10 22H2), that might prevent the fix from working, which is why updating the OS is usually recommended for security compliance.

If updating the entire Windows version isn’t an option now, you can try to install the latest patches for your current version from Microsoft to see if they improve support. Otherwise, making space to allow a full update could be necessary.

Symmetric Key Derivation Function (KDFv1)
  • A KDF is a security algorithm used to generate encryption keys from a secret source like a password or master key. 
  • KDFv1:
    This is an older version of the KDF that Microsoft is phasing out due to security concerns. 
  • Error Cause:
    When your device attempts to authenticate with Azure AD, it might still try to use the older KDFv1, leading to this error. 
  • Solution:
    Updating your device to the latest version of Windows (preferably Windows 10 22H2 or later, or Windows 11) and applying all available cumulative updates will ensure you're using a supported KDF and resolve the error. 
Steps to resolve:
  1. 1. Update Windows:
    Ensure your operating system is fully updated with the latest security patches. 
  2. 2. Check for OS version compatibility:
    Verify that your OS version is supported by Microsoft for Azure AD authentication. 
  3. 3. Apply latest security updates:
    If you can't upgrade your OS, install the latest security patches for your current version
  4. 4. Consider a full OS update:
    If applying individual patches is not sufficient, consider upgrading your OS to a supported version. 
  5. 5. Verify device registration and authentication logs:
    If the issue persists, your IT admin may need to verify Microsoft Entra (Azure AD) device registration and authentication logs after the updates. 
By following these steps, you can ensure your device is using a supported KDF and resolve the "AADSTS5000611" error, 
By addressing the root cause – the use of an outdated cryptographic algorithm – and ensuring your device is up-to-date, you can resolve the "Symmetric Key Derivation Function version 'KDFV1' is invalid" error and restore seamless authentication
Thanks For Reading...
Masud Rana

Sample Course Outline of IT Support Engineering.

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