Cisdem Data Recovery User Guide

June 30, 2020 Preview 5.5K Preview 0
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Cisdem Data Recovery is a safety software to easy recover the lost data caused by Mac crash, accidently delete, SD card formatted or macOS upgrading. So don’t be panic when you lost data, three steps with Cisdem Data Recovery help you to bring it back. To facilitate your use of Cisdem Data Recovery, there are seven parts for you to get started.   


Part 1  Download & Install

1. You can download the installation package of Cisdem Data Recovery from the below link.

Free Download

2. Install Cisdem Data Recovery with the downloaded package.

Double-click the .dmg file.

Drag the Cisdem Data Recovery icon to Applications folder.

Part 2  Activation (Optional)

After installing the program, you need to activate the program if you want to use the full version features.

1. Go to Launchpad or Applications folder, double click Cisdem Data Recovery to run the program, and then click the Activate button on the left lower corner.

Tips: While you launch Cisdem Data Recovery, a popup will show up as follows, please enter your user account password and click “OK”, then you can access to the program.

2. Copy-n-paste the license code into the popped-up window, click Activate.

Part 3 Application Operating

Part 3.1 How to recover lost data with Cisdem Data Recovery?

To recover the lost files, it is quit easy to follow the below three steps.

Step 1 Locate

Specify the location where your files are deleted/lost and click Search for lost files.


1. If you've lost the files from a hard drive, then click "Hardware Disc" to select a hard drive to start scanning, if you've lost files from an SD card, then click "SD Card" to select your SD Card to start scanning.

2. If you've lost files from your Internal hard drive, before data recovery, you'd better click "Disk Backup" from the left sidebar to create a backup of your Mac to avoid further data loss. After backing up, the software can recover data from the Mac backup, and your computer can wirte new data again.


Step 2 Scan

Cisdem will run both quick scanning and deep scanning to detect every sector on your hard drive, and displays the number of found files on the left panel.


Step 3 Recover

When the scan completes, locate and preview the lost files, then select/check the exact files and recover them to your local drive or Cloud drive.


1. To avoid overwritten, please do not save the recovered data on the hard disk where you lost your data. For example, if you scanned Internal Disk 1, please select Internal Disk 2 or an External Disk to save the recovered data.

2. If you cannot find the lost files, or you found it but it cannot be open after recovered, you still have a chance to get your lost data by RAW recovery.

3. If the recovered video files are corrupted and cannot be opened,  we suggest you to try the video repair function to repair the video.


Part 3.2 How to repair corrupted video files with Cisdem Data Recovery?

Like losing important data, it is also frustrating to find that the important video files are corrupted and cannot be opend. Cisdem Data Recovery also provides the video repair function to help you repair the corrupted video files.

Step 1 Select Video Repair on the left panel, click  or directly drag and drop the corrupted video files into the program.

Step 2 Click  after the target video file or directly click  to start the repairing process.

Step 3 (Optional) After clicking the Repair/Repair all button, a window may pop up to ask you to add a sample file to help repair the video files, just click  to add the sample file as requested.

Step 4 Start repairing after adding the sample file as requested.

Step 5 Click  or go to the save location to view the repaired video file when the repairing process is done.


Part 4 How to load system extension to recover data from M1 Mac

You can scan the below QR code to view this section on your mobile device, which is convenient for you to operate on your M1 Mac.

M1 chip structures so different from the Intel chip, an M1 chip has far higher security than the Intel chip. So when you use Cisdem Data Recovery to recover files from a Mac with M1 chips, you will receive a message like below

To resolve this issue, you will need to go to the Recovery environment to reduce the security and then enable system extensions by Cisdem. Below is a step-by-step guide to show you how to do that.

Step 1 Shut down the system, then press and hold Touch ID or Power button until the Options icon appears.

Step 2 Click Continue under the Options icon, then you will be asked to select an admin user and enter your account password, after that you will see the below window.

Step 3 Click Utilities on the top menu bar and select Startup Security Utilities.

Step 4 Select the hard drive where Cisdem Data Recovery installs (usually it is Macintosh HD) and then click Security Policy button on the right lower corner.

Step 5 In the popped-up window, select Reduced Security and check the sub-option allow user management of kernel extensions from identified developers, click OK to save the settings and then restart your Mac.

Step 6 After your Mac starts up, run Cisdem Data Recovery, a message will pop up to ask you to go to System Preferences to load system extension of Cisdem Data Recovery.

To do so, for macOS 12.0 or before, please go to the System Preferences > Security & Privacy > General, click the lock icon at the left lower corner to unlock it (it may require you to enter the account password to unlock it), then click the Allow button to accept the system extension of Cisdem Data Recovery.

For macOS 13.0 or after, please go to System Preferences > Security & Privacy, click the Allow button to accept the system extension of Cisdem Data Recovery.

At last, you will be asked to restart your Mac again, when your Mac restarts, you will be able to run Cisdem Data Recovery to scan and retrieve the lost files from your Internal hard drive.


Part 5 Recover lost data with RAW recovery

What is RAW recovery?

Cisdem Data Recovery rebuild the lost files in the following 2 methods, and the scan result will separately list under Files with Directory and Files without Directory.

1. Locate the files through File Directory Info

The scan result will list under “Files with Directory”, and the file’s directory info (file name, path and created/modified time) will be included.

2. RAW recovery

The scan result will list under “Files without Directory”, and the file’s directory (file name, path and created/modified time) will be lost and replaced as random numbers.

So if you cannot locate the lost data by searching with the file’s name under Files with Directory, or you found it but cannot open it after recovering, you can then have a try under the Files without Directory.


How to fast locate lost data via RAW recovery?

Since the files found by Raw Recovery comes with a random name, it seems that you have to check all the files one by one to see if your lost data is included, which will cost a huge amount of time to confirm all the listed files. Here we will show you 2 tips to help you fast locate the lost data.

1. Locate the lost data based on the file extension and file size.

Enter the file extension in the search box, and then sort the listing files by size, double click to preview the listing files to locate the target file to recover it.

2. Filter the files by tags and locate the lost data.

The files under this tab will be reorganized by file types if there is no file system information can be retrieved. For example, Camera includes the photos and videos, Office includes the word and excel files, etc. And there will be sub-folders if the program detects more information like the device you used to shoot the photos/videos, which will further help you locate the right files you need.


Part 6 Solutions for the drive not being detected

Usually when you run Cisdem Data Recovery, you can see all the drives listed on the left panel of the main interface, if the target drive is not listed there, you may find a solution here.

Please go to Applications folder > Utilities folder, find the app Disk Utility, and double click to open it, all the devices will be listed under Disk Utility,  please check if the target drive is listed here.

Case 1: The device is "Not Initialized".

Generally, when you connect a "Not Initialized" drive, Mac OS will auto pop-up a window to ask you to Initialize the drive, you can directly click "Initialize" in the pop-up window or go to Disk Utility to initialize the drive, after that, you can run Cisdem Data Recovery for Mac to scan the drive.


1. The data is still recoverable after you initialize the disk, the Initialization only re-allocate the disk so it can be reformatted.

2. Even if you are failed to initialize the disk, you are still able to use Cisdem Data Recovery to scan the disk, just click Ignore and start scanning your disc.

Case 2: The device is "Grey Out".

If the device is grey out in Disk Utility, it's probably hidden for some reasons. Right click on this drive and choose "Mount" option to mount the drive, then check if it will be detected.

However, if it does not work, please select the drive and click "Repair Disk" to fix the disk error, then try to run Cisdem Data Recovery again.

Case 3: The issue with the USB Port or USB Cable.

If it is an external device and cannot be detected by Disk Utility at all, please check the connections between the external drive and your Mac to see if the connection is poor or loose. 

1. Try to re-plug the external drive to see if it shows up in Disk Utility.

2. Try another USB cable to connect between the external drive and Mac.

3. Try to connect the external drive with another USB port on your Mac.

4. Try to restart your Mac to see if it will show up in Disk Utility.

If the drive still cannot be detected in Disk Utility, please check the power supply. Single USB ports can provide only 5V. In that case, make use of USB cable having one USB connection for the external drive and two for Mac. This will supply the power required by the external hard drive.

If none of the methods above works, you probably need to send the drive to manufacturer or local hardware maintenance lab for an overhaul.


Part 7 Update Application

We always suggest users to use the latest version of the program.

When you launch Cisdem Data Recovery, Cisdem will auto check for updates and prompts you to download the latest version package.

Also, you can click Cisdem Data Recovery > Check for Updates on the left top menu bar to manually check for updates.



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Traci Gordon has worked as a tester in a software company for 8 years, she believes that the best software should be a tool that can help users accomplish what they need with the simplest steps.

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