[Solved] Blend HRESULT: 0x80073CF6 , Package could not be registered. (Exception from HRESULT: 0x80073CF6)

How To Solve "Blend HRESULT: 0x80073CF6 , Package could not be registered " Error

I solved this HRESULT: 0x80073CF6 error.. by changing default owner of registry key to system ...

1. Open Registrey Editor by entering regedit in Run [Press Win+R Key]

2. Go to Following Registry 

HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Repository\Packages

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3. Right Click and Click on Permissions [as shown in above image]

4. Click On Advance Button

5. Click On Change Owner

5. Type System and Press Check Name

6. Click On OK

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