Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. I can find the value in the registry after step 2, I cannot find it after step 4, but step 5 still finds it. And even if I don’t change anything, step 6 really deletes the variable. Here is the solution to my problem. I don’t know if it is the correct solution, but it works for me:.

This will not be broadcasted, but it is a small temporary problem. You can use setx to delete an environment variable, this will broadcast the correct message:. As discussed in the comments, using setx by itself will leave an empty entry behind in the registry, which should be deleted for the sake of consistency.

The registry is read at boot. When a program is started it gets a copy of it’s parent’s environment, usually Explorer. As the comment says, explorer or any other graphical program that acts on the message if it gets a message from some other program like setx warning it that the registry has been changed, rereads the registry. In my case , it didn’t work even though i ran as administrator. Command prompt displays error registry key not found. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge.

Create a free Team Why Teams? Learn more. Deleting environment variables doesn’t work Ask Question. Asked 7 years, 2 months ago. Modified 3 years, 9 months ago. Viewed 9k times.

Here are the details: I created the following 3. Double click on Check variable. Double click on Delete variable. Click on the Start menu, type environment , click on Edit environment variables for your account to open the Environment Variables dialog box, click OK without changing anything Double click on Check variable. You have to broadcast a message to notify applications in this case, Windows Explorer of the change.

See stackoverflow. HarryJohnston: How do I broadcast the message from a batch file? Add a comment. Sorted by: Reset to default. Highest score default Date modified newest first Date created oldest first. I don’t know if it is the correct solution, but it works for me: Check variable. Note that this solution leaves behind an empty entry for DummyVarUsedToDelete in the registry, which should probably be deleted.

Harry Johnston Harry Johnston From technet. You can use set with a variable name and no value to remove a corresponding value from the local environment. Works for me. I suspect that part of the documentation is out of date. It changes the variable value from whatever it is to “”, but it does not delete the variable. Often an empty string has the same effect as a non existing variable, but I want to delete it — stenci.

It does delete the variable – that is, the variable will no longer appear in the environment block for new processes, I’ve checked this – but it does leave an empty entry behind in the registry, which is probably not a good thing. The answer is simple Use set and setx on sequential lines. Trigger Trigger 81 2 2 bronze badges. The problem is on the delete, not on the set. It looks like the setx does its job and Explorer.

The problem is that reg delete does its job, but does not notify Explorer. Command prompt displays error registry key not found In such case go directly to registry keys file Method2: Go To register editor.

This should work fine Method 3: Sometimes not updated windows could be the issue. Check if any updates available.

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Windows 10 delete environment variable command line free

 

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