Can deleted CCTV footage be recovered? It depends on overwrite. Footage written over by new video is gone. Deleted footage not yet written over can still sit on the disk. Stop the recorder before it writes more video. Never format the disk. Export anything that still plays first.
You open playback and a full day is missing. Now you wonder if the clip still exists anywhere.
You get the cases that decide the answer and the first steps I take. I also flag what the maker pages do not say.
What Happens When a DVR Deletes Footage?
Swann says you cannot delete one recording file on its recorders. Footage goes in two ways. Recorders overwrite the oldest recordings once the drive is full or you format the drive.
Lorex says most recorders overwrite the oldest video when the disk fills. Lorex's D861 manual names the setting HDD Full with two choices, Overwrite and Stop Record.
Can Overwritten Footage be Recovered?
No. Swann support says it cannot recover recordings that were recorded over. It says the same for footage lost on a format and for video the recorder never captured.
Overwritten footage is gone because new video now sits in the same space. Speed matters because a powered recorder adds new video every minute.
How Long does a DVR Store Footage Before Overwrite?
Lorex lists five factors. They are recording resolution, schedule, audio, frame rate and disk capacity. Lorex gives no day count because every setup differs.
Check free and total space on your own unit. On the Lorex LHA and LNK series it sits under Main Menu, Device and HDD.
What should You do Right After Footage Goes Missing?
Who it suits. Owners and installers with the recorder in front of them. Extra application. None for steps 1 to 3.
- Export what still plays. Copy any clip you can see to USB. Our guide on how to copy CCTV footage to a pendrive shows the steps.
- Shut the recorder down. Use the menu option. Powered recorders add new video every minute.
- Decline every format prompt. Swann warns that a format erases all recordings.
- Label the disk. Note the recorder brand and the date footage went missing.
- Connect the disk with care. See the guide on how to connect a DVR hard drive to a PC.
Heads Up. Drives that click or never spin need a lab. Repeated power ups can make that harder.
Which Cases can Come Back and Which Cannot?
| Case | Outlook | Why |
|---|---|---|
| Written over | Gone | New video sits there |
| Never recorded | Gone | Schedule or motion setting |
| Formatted | Unclear | Swann support says no |
| Deleted and idle | Possible | Space not yet reused |
| Drive fault | Lab case | Clicking or no spin |
Your recorder file system matters too. Our guide on WFS and DHFS file systems shows why a PC cannot open most DVR disks.
Which Limits Apply to This Advice?
- Unwritten space. I found no maker page that says deleted clips stay on the disk. Treat it as general disk behavior.
- Swann statements. No recovery lines come from Swann support and not from every brand.
- Day counts. No maker page gives a safe number of days.
- Hardware faults. Failing drives need a lab and no menu step repairs them.
My Verdict on Deleted Footage
Can deleted CCTV footage be recovered? Only while new video has not reached that space. Every hour of recording lowers the odds.
Act in the first hour and export first. Stop the recorder after that.
Key Takeaways
- Overwritten footage is gone.
- Formats erase all recordings.
- Resolution, frame rate and disk size set the overwrite time.
- Stop the recorder after you export what plays.
Next Read
Frequently Asked Questions
Does a DVR Overwrite Old Footage by Default?
Yes. Swann says its recorders overwrite the oldest recordings once the drive is full. Lorex says most recorders do the same.
Can I Delete One Clip From a Swann Recorder?
No. Swann says you cannot delete a single recording file. You wait for overwrite or format the drive.
Can I Set a Retention Time?
Yes. Lorex says you can set a number of days or hours on some recorders. Check your own menu for the option.
Does Recording Continue With Overwrite Off?
No. Lorex says you must delete files by hand or add new storage once the disk is full.
Does Formatting Erase My Footage?
Yes. Swann says a format erases all recordings. Export to USB first.
Can Support Restore Footage After a Format?
No. Swann support says it cannot recover recordings lost on a format or recorded over.
Should I Export What Still Plays Before Anything Else?
Yes. Copy every clip you can see to USB first. Then shut the recorder down from its menu.
Jamie blends strategic marketing insight with technical writing, turning migration and recovery topics into guidance that works for technical and general readers alike.
Published 11 November 2026. Overwrite and deletion facts come from the Swann support page on how to delete recordings, the Lorex page on how long recordings are stored and the Lorex D861 manual section on recording. Menu names and overwrite behavior differ by brand and model. Check the manual of your own recorder. Export footage before any format.