How to play dahua dvr downloaded .dav files on windows computer?

Dahua SmartPlayer

🧩 What Are .DAV Files?

.dav files are proprietary video files recorded by Dahua DVRs, NVRs, or IP cameras.

They are not standard MP4 or AVI formats, so they don’t play in Windows Media Player or most regular players.

To open them, you need Dahua’s official playback tool — Smart Player — or you can convert them into MP4 later.

✅ Step-by-Step: How to Play .DAV Files Using Dahua Smart Player

1. Download Dahua Smart Player

2. Install Smart Player

Run the downloaded setup file (SmartPlayerSetup.exe).
Follow the on-screen instructions to complete installation.
Once installed, open the Smart Player application.

3. Open Your .DAV File

In Smart Player, click “Open File” or “Add File”.
Browse to the folder where your Dahua DVR exported the .dav file.
Select the file and click Open.
The video will start playing immediately in the player window.

4. Control the Playback

Smart Player provides a full set of playback controls:

▶️ Play/Pause — standard playback controls.
⏩ Fast Forward / Rewind — quickly scan through long recordings.
⏱ Timeline slider — scrub to a specific time in the recording.
🔊 Volume — control or mute audio.
📷 Snapshot — capture still images from the video.
✂️ Clip/Export — trim and export a portion of the footage to share.

5. Export or Convert .DAV Files

If you want to view the video on other players or share it:

In Smart Player, click “Export” or “Save As”.
Choose AVI or MP4 as the output format.
Select a destination folder and click Start.
Wait for the conversion — once done, you can open the MP4 file in any media player.

Keyboard Not Working. Only Beep Sound | Easy Solution

🔍 Overview

If your keyboard is reacting (making beep sounds or key-click noises) but nothing appears when you press keys, this tutorial provides a clear walkthrough of how to fix it by checking and disabling the Filter Keys (and related accessibility settings) in Windows.

✅ What You’ll Learn

How to access the “Accessibility” or “Ease of Access” section in Windows to find keyboard-related settings.
How the Filter Keys feature can interfere with normal typing by ignoring repeated keystrokes or interpreting them as slow input.
How to turn off Filter Keys (and optionally Sticky Keys or Toggle Keys) so your keyboard returns to normal behavior.
Additional steps to verify that the keyboard driver and hardware are functioning correctly, in case the accessibility feature wasn’t the root cause.
Simple troubleshooting instructions you can follow right away without installing special software.

📝 Why This Matters

Many people assume a malfunctioning keyboard with no visible typing output means hardware failure—but often the culprit is a mis-set system accessibility option like Filter Keys. According to the Microsoft Q&A community:

“if a keyboard makes noise, but isn't typing, it may be … a software issue with accessibility settings like Sticky Keys or Filter Keys.” Microsoft Learn

So by following this video you might save time, money, and stress by avoiding unnecessary hardware replacements.

🛠 Step-by-Step (As Covered in the Video)

Open Settings → Accessibility → Keyboard (or on older Windows versions: Control Panel → Ease of Access → Keyboard).
Locate the Filter Keys toggle and turn it off. Also turn off Sticky Keys & Toggle Keys if they’re enabled.
Check the “Keyboard shortcut” setting for these features and disable the shortcut that may accidentally trigger them.
Once turned off, test your keyboard to see if typing inputs are working again.
If the problem persists, visit Device Manager → Keyboards → [your keyboard device], and update or reinstall the driver.
Optionally run the built-in Keyboard Troubleshooter (Settings → System → Troubleshoot → Other… → Keyboard).
Restart your computer one more time and test again.

Keyboard Not Working & Touchpad Not Working?

Description:

If your laptop keyboard or touchpad has stopped working after upgrading to Windows 11 (or after a recent system update), this video takes you through the essential troubleshooting steps to get things back to normal. You’ll learn how to check device settings, update or roll back drivers, reinstall input device software, and restore keyboard/touchpad functionality — all without needing to visit a repair shop.

In the tutorial you’ll find clear instructions and quick fixes such as:

Verifying the keyboard/touchpad is enabled in Settings.
Checking Device Manager for driver errors and updating or reinstalling drivers.
Using Windows Recovery or rollback features if the latest driver update caused the issue.
Adjusting BIOS/UEFI settings in case your input devices are disabled at the hardware level.
Additional tips for maintaining smooth input device operation after system updates.

Why this matters:

Updating your OS should introduce new features and better stability, but sometimes system updates can disrupt peripheral hardware — especially built-in keyboards and touchpads on laptops. Having a simple, trustworthy guide means you avoid the frustration of being unable to type or control your cursor and spend less time guessing what went wrong.

Want to follow along?

Be sure your laptop meets the following prerequisites:

It is running Windows 11 or a fresh update thereof.
You still have some input method (e.g., USB mouse or external keyboard) available for navigating if your built-in devices are unresponsive.
You’re comfortable going into Settings or Device Manager — but don’t worry, the video walks you through every step.

Forget WiFi Password? Recover Your WiFi Password

🎥 Video Overview

The video walks viewers through a simple and practical solution: how to recover or reveal the password of a WiFi network that your Windows 11 computer is already connected to. YouTube

It’s aimed at people who have forgotten their WiFi credential but still have one device already logged-into the network (so the key is still retrievable).

✅ Key Steps Covered

Confirm your PC is connected – Make sure your Windows 11 machine is connected to the WiFi network whose password you’re trying to recover.
Access Network & Internet settings – The presenter shows how to navigate through Windows’ “Settings” or “Control Panel” to get to the network details.
Locate Wireless Properties – Under the connected WiFi network, find “Wireless Properties” and then the “Security” tab.
Reveal the password – On the “Security” tab, tick the checkbox labelled “Show characters” (or equivalent), so the hidden password becomes visible.
Save or note the password – Once visible, you can copy it down for use on other devices or backup it somewhere safe.

📌 Why This Matters

Convenience: We often forget WiFi passwords (especially long or auto-generated ones). This method saves you from having to reset the router or set up a new password.
Practicality: All you need is a single device that’s already logged-in; no special software, no router console access required.
Time-saving: Instead of restarting a network setup from scratch, you recover the existing credential in minutes.

⚠️ Points to Keep in Mind / Tips

Make sure you have administrator access on the Windows 11 PC — revealing the password typically requires elevated privileges.
This method works only if the device is already connected to the network (so the password is stored locally). If no device is connected, you'd need to log in to the router or reset the network.
Once you have the password, consider saving it securely — e.g. in a trusted password manager rather than leaving it written on paper or a sticky note.
If you plan to share the password, check your network security settings (router encryption, guest network, etc.) to make sure you’re not inadvertently exposing your main network.

You Need To Set Up A Microphone In Settings | Mic Not Working in Windows 10 and Windows 11

If you see the error message "You need to set up a microphone in Settings" on your Windows 10 computer, it means that your computer is not detecting a connected microphone or the microphone is not set up correctly. Here are some steps you can take to fix the problem:

· Check your microphone connections: Ensure that your microphone is properly connected to your computer's audio port. If you're using a USB microphone, make sure it's properly connected to your computer's USB port. If you're using a wireless microphone, ensure that the receiver is properly connected to your computer.

· Check your microphone settings: Open the Settings app and click on "System." Select "Sound" from the left pane and ensure that your microphone is selected as the input device under the "Input" section. If your microphone is not listed, click on "Troubleshoot" to diagnose and fix any issues.

· Check your microphone permissions: Open the Settings app and click on "Privacy." Select "Microphone" from the left pane and ensure that the toggle switch for "Allow apps to access your microphone" is turned on. Also, ensure that the toggle switch for each app that needs access to the microphone is turned on.

· Update your audio driver: Open Device Manager and expand the "Sound, video and game controllers" section. Right-click on your audio device and select "Update driver." Follow the on-screen instructions to update your audio driver to the latest version.

· Test your microphone: Open the Sound settings again and click on "Device properties" under the "Input" section. Click on the "Additional device properties" link to open the Microphone Properties window. Now click on the "Levels" tab and then speak into your microphone. You should see the sound level meter move in response to your voice. If you don't, try adjusting the microphone volume or boost levels.

If none of these steps resolve the issue, try using a different microphone or contacting your computer's manufacturer or a professional computer repair service for assistance.

Your Account is Locked (Macbook). Unlock Macbook Without Losing Data | Recover Mac Password Easily.

Your Account is Locked (Macbook). Unlock Macbook Without Losing Data

If you have been locked out of your MacBook due to multiple failed login attempts or a forgotten password, you can unlock your MacBook without losing any data by following these steps:

· Restart your MacBook: Press and hold the power button until your MacBook shuts down. Wait a few seconds, then press the power button again to restart your MacBook.

· Boot into recovery mode: As your MacBook starts up, press and hold the Command + R keys until the Apple logo appears. This will boot your MacBook into recovery mode.

· Launch Terminal: In the recovery mode, click on the "Utilities" menu and select "Terminal" from the drop-down menu.

· Enter resetpassword command: Type in "resetpassword" (without the quotes) and press the Return key.

· Select your user account: A new window will appear with a list of user accounts. Select your account and click on "Next".

· Reset the password: Enter a new password for your account and confirm the password. You can also add a password hint if you want. Click on "Reset Password" to save the new password.

· Restart your MacBook: Quit the reset password window, and restart your MacBook. You should now be able to log in using your new password.

Note: If you have enabled FileVault encryption on your MacBook, you will need to enter your FileVault recovery key to unlock your disk after resetting your password. If you don't have the recovery key, you won't be able to access your data, and you may need to erase your MacBook and restore it from a backup.

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