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In this demo we will see how to clear registry keys and values without

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deleting it using Clear‑Item and Clear‑ItemProperty command.

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Next,

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we will see how to completely delete registry keys and values

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using Remove‑Item and Remove‑ItemProperty command.

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In this demo we will see how to clear the registry keys and values.

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First,

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I'll show you how to clear a property value using Clear‑ItemProperty command.

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Before that,

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I'll run get ItemProperty command to check the value of

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OldInstallPath property that resides under App2 registry key.

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We can see that the value is set to C:\Temp.

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Now, I'll run Clear‑ItemProperty command.

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Here you will have to provide the path in the Path parameter.

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I'll enter App2, as the property that we are clearing resides under this key.

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In the Name parameter, I'll enter property name which

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is, in our case, is OldInstallPath.

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I'll hit Enter and execute the command. Again when I can Get‑ItemProperty

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command, we can see that the value has been cleared.

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Next, I will delete this property using Remove‑ItemProperty command.

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This will not only remove the value but will completely delete the

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property from the registry key. Since the command syntax is same,

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I'll just replace Clear‑ItemProperty command with

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Remove‑ItemProperty and execute the command.

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Now when I run Get‑ItemProperty command we get an error stating

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that OldInstallPath property does not exist.

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That's because it was deleted in the previous step.

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We will now see how we can clear and delete the registry key.

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Clear‑ltem will not delete the registry key, but it

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will just remove its content.

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I'll first run Clear‑Item command.

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I need to provide the complete path of the registry that I wish to clear.

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Here I'll enter .\App2\ and hit Enter.

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When I switch to registry console and do a refresh, we can see

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that all the contents of App2 registry key are cleared, and

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only the default entry remains.

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I will now show you how we can delete the registry key.

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We will delete the App2 registry key using Remove‑Item command. In

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the Path parameter I'll enter App2. You can also add Confirm

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parameter while deleting the registry key.

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This will prompt you to confirm before deleting.

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As of now, I'll remove the Confirm parameter and proceed with deleting the key.

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As soon as I had to Enter, the registry key gets deleted.

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When we switch to registry console and do a refresh, we can see that the App2 key, along with its properties, is now deleted.