If you want to enable the incognito mode again, simply follow steps 1-7 from above, change the value in step 8 back to 0, and hit ‘OK.’ Disabling Chrome’s Incognito Mode via Command Prompt
Note that if you can’t locate this folder, it means that you need to use the Command Prompt method. HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome
Type the following address in the bar on the top, or navigate to it manually:.Hold Windows Key + R to open the Run window.