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Why Your CCTV DVR Hard Disk Stops Recording (and How to Recover Lost Footage)

  • 2 min read

A DVR that suddenly stops recording is one of the most common calls we get from shop owners, housing societies, and offices across Kolkata. Usually it’s discovered at the worst possible time — right when footage from a specific day is needed. Here’s what typically causes it, and what you can still do about the recording you already had.

Common reasons a DVR hard disk stops recording

  • Bad sectors building up: DVR drives run 24/7 under continuous write load, which wears them out faster than a normal PC hard disk.
  • Heat and dust: DVRs are often installed in poorly ventilated cabinets, which shortens drive life significantly.
  • Power fluctuations: Frequent power cuts without a proper UPS cause abrupt shutdowns that corrupt the file system.
  • Drive simply reaching end of life: Most consumer-grade surveillance drives are rated for 3-5 years of continuous use.

What NOT to do

Don’t run the DVR’s built-in “format” or “repair disk” option hoping it fixes the recording issue — this is the single biggest cause of permanently lost footage we see. If the DVR shows an error like “HDD error” or the recording simply stops with no error at all, power it down and leave the drive untouched until it can be examined properly.

Is the old footage still recoverable?

In most cases, yes — a drive that stops recording new footage often still holds everything recorded before the fault occurred. The video isn’t erased just because the DVR can no longer write new data to it. Recovery involves removing the drive, creating a sector-level image of it in a controlled environment, and then extracting the video using tools built for your DVR’s specific file format.

Getting it fixed in Kolkata

RecoverEX picks up DVR and NVR hard disks from anywhere in Kolkata, Kalyani and Nadia, diagnoses the drive, and shows you exactly what’s recoverable before you commit to paying. We also advise on preventing a repeat — usually a UPS, better ventilation, and a scheduled drive-health check.

If your DVR has stopped recording, call us at +91 6290233690 or reach out on WhatsApp before attempting any repair yourself.

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