Hi,
When I try to download the framework then this problem occurs:
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I have tried to turn on the windows features for .NET framework 3.5 and install it through the command prompt, but nothing seems to work.
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Glad the old error is gone.
First, uninstall .Net Framework 3.5 using DISM. And then reboot Windows.
Then, reinstall .Net Framework 3.5.
If that doesn't help, please share the latest CBS logs.
Please export the key to a REG file.
In the right pane, right-click "CF" and choose Delete.
Exit the Registry Editor.
Attempt to install .NET Framework 3.5 now.