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1. Change user Account Control

Control Panel, security and maintenance, left "change user Account Control Settings"

　　

2. Change the security policy

Security options, local policies, security settings, start-to-run, input secpol.msc-> Local Security policy

2-1. User Account Control: Run all administrators with Admin Approval Mode enabled
2-2. User Account Control: Admin Approval Mode for built-in Administrator account enabled

　　

3. Restart the computer to take effect

WIN10 App Store won't open