How to record your PC for 24 hours & 365 days
How to use Bandicam as a Computer Blackbox: PC Monitoring Software
What is the "Computer Blackbox" function?
Black boxes are commonly used in vehicles for surveillance and/or insurance purposes.
Similarly, Bandicam’s “Computer Blackbox function” serves as a PC Monitoring/Surveillance Software by recording your PC screen and sound nonstop for 24 hours & 365 days.
Some ways to use Computer Blackbox
- Most users: Record your full computer screen continuously starting from when Windows starts.
- Quality Assurance (QA) jobs: Easily find mistakes or defects of your products by recording your computer screen.
- PC Monitoring/Surveillance: Check if employees are following their company's policy.
- Trading system: Record your trading system of stocks, bonds, futures, options, or forex, which can help you monitor price fluctuations almost every second.
- Server/Network monitoring: Record the traffic screen of web servers, network servers, and storage servers.
- CCTV/Camera: Record the screen of closed-circuit television (CCTV) cameras nonstop for over 24 hours.
To use Bandicam as a Computer Blackbox, please follow the steps below:
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. This function allows you to do PC Monitoring or Surveillance.
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Please click the [Advanced] button, and check the "Start Bandicam minimized to tray"
and “Turn off tray balloon notifications” options.![Start Bandicam minimized to tray, Turn off try balloon notifications]()
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If you want to create video files and separate them by the hour, choose "1 hour" in the recording time menu and select the "Start new recording" option as shown below.
![Computer Blackbox recorder, auto complete recording]()
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Select the "Around mouse" menu, click "Fullscreen," and close Bandicam.
(To record only audio for more than 24 hours, select the "Audio only" recording mode.)
![Hiding the Recorder Status bar, around mouse, fullscreen]()
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Follow the steps below to start recording automatically with Windows Task Scheduler:
- Type "Task Scheduler" in Start, and click "Task Scheduler."
- [General] tab: Click "Create Task...," and type the name of the task such as "Bandicam start recording." Then, check "Run with highest privileges."
- [Triggers] tab: Select the "At log on" option. Tip) You can also select the "On a schedule" and "Indefinitely" options to record your computer screen for 24 hours.
- [Actions] tab: Click "Browse..." and select the executable file (C:\Program Files\Bandicam\bdcam.exe). Then, enter "/record /nosplash" in "Add arguments."
![Windows Task Scheduler, start]()
![Schedule Recording, Windows task scheduler, General]()
![Schedule Recording, Windows task scheduler, recording time, Triggers]()
Tip) The latest versions of Bandicam (4.6.1 or higher) can use "/record /nosplash" parameters.![Schedule Recording, Windows task scheduler, start recording - /record /nosplash parameters]()
If you follow the instructions as explained above, you can automatically record your computer screen without the recorder status bar.
Essential Tips and FAQs for Computer Blackbox
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![Record dual/multiple monitors]()
Tip 1) How to record dual/multiple monitors when Windows starts
If you want to record the entire dual monitor when Windows starts, click the 'Select a recording area' option instead of the "Around mouse" menu, click on an empty area on the Windows desktop
, close Bandicam, and follow the steps above. -
![How to automatically delete old video files]()
Tip 2) How to automatically delete old video files
If you record your computer nonstop for over 24 hours and 365 days, you may want to automatically delete old files to avoid exceeding your hard disk’s capacity limit. In this case, you can automatically delete old movie files by using the 'Task Scheduler' and 'ForFiles' commands of windows.
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![How to cut parts of a video quickly while maintaining the quality of the original video]()
Tip 3) How to cut parts of a video quickly while maintaining the quality of the original video
If you’ve been recording your desktop screen for a long duration, you may want to remove any unwanted parts of the video. Use Bandicut Video Cutter to trim parts of a video without losing the original video quality.
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![HDMI Dummy Plug, How to turn off the monitor and record a video]()
Tip 4) How to turn off the monitor and record a video
Usually, if you turn off your monitor while recording, the recording will stop automatically. However, if you connect an HDMI dummy plug to the computer and create a virtual monitor to record, you can record your computer screen without an active monitor.
- Amazon.com: HDMI Dummy Plug
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Tip 5) Best settings for Computer Blackbox
![How to reduce the file size]()
1) AVI is better than the MP4 file type when Bandicam is abnormally terminated due to power outage and other issues while recording.
2) If you have a problem with hardware-accelerated video codecs such as H264 (Intel Quick Sync Video, NVIDIA NVENC or AMD VCE/VCN), try the H264 (CPU) video codec.
3) To reduce the file size of the video, you can choose from the options below:
- Change the video size from "Full size" to "Half size" (Optional)
- Change the FPS (frames per second) value 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)
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Tip 6) Power & sleep settings
![power and sleep settings for screen recording]()
If you want to record your computer for a long duration, select the "Never" option in "Power & sleep settings" to keep your monitor on, which is optimal.
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