How to record your computer for 24 hours, 365 days
PC Monitoring and Surveillance Software

What is the "Computer Blackbox" function?

Black boxes are usually used in airplanes and other vehicles to record activity before a crash. The purpose of the Computer Blackbox function of Bandicam is to record your desktop screen and sound for 24 hours & 365 days. It can be good PC Monitoring/Surveillance Software.

Use cases of Computer Blackbox

  • Most users: Record your full computer screen continuously from when Windows starts.
  • QA jobs: Easily find mistakes or defects of your products by recording your computer screen.
  • PC Monitoring, Surveillance: Check/Monitor if bank tellers, telemarketers, clerks, shop assistants, part-time workers are following the company's policy.
  • Trading system: Record your trading system of stocks, bonds, futures, options, Forex which prices fluctuate almost every second.
  • Server/Network monitoring: Record the traffic screen of web servers, network servers, storage servers.
  • CCTV/Camera: Record the screen of closed-circuit television (CCTV) cameras for over 24 hours if it can be seen on your PC.

To use Bandicam as Computer Blackbox, please follow the steps below

  1. Auto Start Recording

    auto start recording, Computer Blackbox recorder

    • Please check "Start Bandicam minimized to tray (Optional)", "Run Bandicam on Windows startup" and "Start full-screen recording on Bandicam startup" to record your computer screen when Windows starts.
    • If you want to automatically start recording at a specific time, check the "Set timer for Auto Start Recording" option.
    • If you want to start recording at a specific time on a daily/weekly schedule, please refer to "Bandicam Scheduled Recording" or "Task Scheduler Recording".
  2. Auto Complete Recording and Power & sleep settings

    If you have to record your computer for a long time, we highly recommend you use the "Auto Complete Recording" function to store the videos safely. If you want to create the video file every hour, choose "1 hour" at the recording time menu, and choose the "Start new recording" option as shown below.

    Computer Blackbox recorder, auto complete recording

    Please also select the "Never" option at the "Power & sleep settings" when you record a computer for a long time.

    power and sleep settings for screen recording

  3. Best settings for Computer Blackbox

    How to reduce the file size

    1) AVI is better than the MP4 container when Bandicam is abnormally terminated due to power outage or other reasons while recording.

    2) If you have a problem with a hardware-accelerated video codec such as H264 (Intel Quick Sync Video, NVIDIA NVENC or AMD VCE), try the H264 (CPU) video codec.

    3) To reduce the file size of the video, you may choose some options below:

    • Change the video size from "Full size" to "Half size" (Optional)
    • Change the FPS (Frames per second) number from "30" to "10" (Optional)
    • Select the "H264" video codec (Recommended)
    • Change the quality value from "80" to "10" (Optional)
    • Uncheck the "Record sound" option (Optional)

    * Related FAQs

How to hide the recorder status bar
How to run screen recording software in stealth mode

If you use the "Around mouse" recording mode and "Windows Task Scheduler", you can automatically record your computer screen when Windows starts without the recorder status bar.

  1. Start Bandicam and check the "Start Bandicam minimized to tray" option.

    Start Bandicam minimized to tray, Run Bandicam in stealth mode

  2. Select the "Around mouse" menu and click "Fullscreen" and close Bandicam.

    Hiding the Recorder Status bar, around mouse, fullscreen

  3. Click on Start, type in "Task Scheduler", and select the "At log on" option to record your computer screen when Windows starts.

    For more information, please visit "How to start recording automatically with Windows Task Scheduler".

    Windows Task Scheduler, start

Essential Tips and FAQs for Computer Blackbox

Tip1) How to automatically delete old video files

If you record your computer for over 24 hours and 365 days, you may need to delete old files automatically due to the capacity limit of your hard disk. In this case, you can delete old movie files automatically by using 'Task Scheduler' and 'ForFiles' command of Windows.

Tip2) How to record your computer screen without administrator privileges (Standard or Guest Account)

If you want to run Bandicam automatically at startup and record your computer screen without administrator privileges (standard user account or guest account), check "Start Bandicam minimized to tray, Run Bandicam on Windows startup and Start full-screen recording on Bandicam startup", and add the bdcam_nonadmin.exe file to the Startup folder.

Tip3) How to cut parts of video quickly while keeping the original video quality

If you have recorded your desktop screen for a long time, you may want to remove the unwanted part of the video.
Please try Bandicut Video Cutter to save only the part of the video that you want without losing the original video quality.

Last Updated on

  • Capture 4K Ultra HD videos up to 3840x2160
  • Record over 24 hours without stopping
  • Upload a captured video to YouTube

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