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Hi
First time here , I have a major problem whist trying to either install or uninstall Acad versions with the message error 1402 could not open key

HKEY_LOCAL_MACHINE\Software\Classes\COLfile\Defaulticon

I have full admin rights and have checked the key class for permission
any ideas
 

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Hi Stevemac, Welcome to Tech Support Forum

You will receive this error message if the required registry key does not have the correct permissions. Registry Edits are risky, so make sure you back up first.

To resolve this issue

1. On the Start menu (Windows), click Run.
2. In the Run dialog box, enter regedit.
3. Locate the key indicated in the error message.
4. Right-click on the key. Click Permissions.
5. In the Permissions dialog box, change the permissions to Full Control for the user.

If this key does have the correct permissions, check the key above it in the hierarchy.

Good luck and let me know how you go.
 
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