Stellar Photo Recovery/4. Working with the Software/4.8. Performing a Deep Scan/4.8.1. Why enable Kernel Extension (KEXT)?

4.8.1. Why enable Kernel Extension (KEXT)?

Stellar Photo Recoveryprovides recovery of data from mac models with a T2 security chip. If you have T2 security chip system then you need to allow the software for内核扩展(KEXT).KEXTis digitally signed byStellar®and verified byApple®.Thus, your system and its privacy are safe.

Note: While performing a deep scan of any volume,Stellar Photo Recoverysoftware is required to enable内核扩展(KEXT). This process only needs to be set when starting a deep scanning process for the first time.

Steps to allow Kernel Extension (KEXT):

1. RunStellar Photo Recovery.

2. From theRecover Photo, Audio & Videoscreen, select the volume from which you want to recover the data.

3. SelectDeep Scandirectly from here, if you want to perform a comprehensive scan of the selected volume. Then click onScan.

注意:If you don't want to selectDeep ScanfromRecover Photo, Audio & Videoscreen, then skipStep 4and directly click onScanbutton for quick volume scanning.

4. TheAllow Extensiondialog box is displayed. ClickNextto proceed.

Note: For further instructions on how toEnable Extension,follow the steps mentioned fromStep 9.

5. Click停止button, if you need to abort the scanning process before it is completed.

6. After the scanning process is completed, details of the files and folder found are displayed in a dialog box as shown below:

7. ClickOKto finish the process.

8.如果你做了一个快速扫描Recover Photo, Audio & Videoscreen and your expected data is not recovered then click onclick herelink from preview window to perform deep scanning.Deep Scandialog box is displayed prompting to enable内核扩展(KEXT)and then perform a deep scan.

9. ClickEnable Extensionbutton, a window appears showing a short procedure to allow the extension. ClickNext.

10.System Extension Blockedwindow is displayed with the application name that requires内核扩展(KEXT).

Note: There are two cases whenSystem Extension Blockedwindow is displayed:

• Case 1: When your system has a single application that requires Kernel Extension.

• Case 2: When your system has multiple applications that require Kernel Extension.

ForCase 1, follow the instructions given fromStep 11toStep 16.

11. ClickOpen Security Preferencesand wait for the system to open theSecurity & Privacysettings.

Note:在some cases, if you clickOKon theSystem Extension Blockeddialog box instead ofOpen Security Preferences,Stellar Photo Recoverymight not give you the option to open theSecurity & Privacysettings when you run scan the next time. In that case, you need to manually open theSecurity & Privacysettings using the procedure given inHow to manually open the Security & Privacy settings in macOS.

12. On the bottom left corner of the window, click the lockicon.

13. Use yourTouch ID(if available) or enter your system administrator credentials and clickUnlock. This enables theAllowbutton on theSecurity & Privacywindow.

14.ClickAllow, allowing macOS to load the extension signed by “Stellar Data Recovery”.

15. CloseSecurity & Privacywindow to go back toStellar Photo Recovery.

16. ClickContinueon theAllow Extensionwindow to resume your scan of the System Disk.

ForCase 2, follow the instructions given from Step 19 to 25:

17. OnAllow Extensionwindow, clickNextbutton. If your system has multiple applications that support内核扩展thenSystem Extension Blockedwindow is displayed multiple times with all the available application names.

18. ClickOpen Security Preferencesand wait for the system to open theSecurity & Privacysettings.

Note:在some cases, like if you clickOKon theSystem Extension Blockeddialog box instead ofOpen Security Preferences,Stellar Photo Recoverymight not give you the option to open theSecurity & Privacysettings when you run scan the next time. In that case, you need to manually open theSecurity & Privacysettings using the procedure given inHow to manually open the Security & Privacy settings in macOS.

19. On the bottom left corner of the window, click the lockicon.

20. Use yourTouch ID(if available) or enter your system administrator credentials and clickUnlock. This enables theDetailsbutton on theSecurity & Privacywindow.

21. ClickDetailsbutton.

22. A window appears listing the available application names along with a checkbox. SelectStellar Data Recovery公司。checkbox and clickOK.

23. A window is displayed with a message, "A restart is required before new system extensions can be used." Click onRestartbutton.

How to manually open the Security & Privacy settings in macOS:

In some cases, if you are unable to allow macOS to load the extension in the first attempt,Stellar Photo Recoverydisplays the following dialog box when you scan a system disk the next time.

This means you have to manually open theSecurity & Privacysettings in macOS. The procedure to open the security settings is given as follows:

1. Click theAppleicon from the top left of your screen and selectSystem Preferencesfrom the drop-down menu.

2. SelectSecurity & Privacy.

3. Follow the steps fromStep 12of the procedure to allow macOS to load an extension signed by “Stellar Data Recovery”.