Answer by mikyll98 for Inspect Element Greyed out in Chrome

Solution

You have to change the value of the Windows registry Software/Policies/Google/Chrome/DeveloperToolsDisabled from 1 to 0.

NB: you need admin privileges to edit the registries.

Steps

Command Line

1. Launch CMD as administrator;
2. Enter the following command:

reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v DeveloperToolsDisabled /t REG_DWORD /d 0 /f

You should see a message The operation completed successfully.

GUI

1. Launch Registry Editor as administrator (Press Win + R and enter regedit):

2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome:

3. Look for a key named "DeveloperToolsDisabled":

4. Change its value from 1 to 0:

5. Close the Registry;
6. Restart the computer for the changes to take effect.