From LedHed's Wiki
Contents
Remove Quick Access from Windows Explorer
Change View Options
- [WIN+E] -> View -> Options -> "Change Folder Options" -> Open File Explorer to: "This PC"
Registry Permissions
- Make local Admin account Owner of HKEY_CLASSES_ROOT\CLSID{679f85cb-0220-4080-b29b-5540cc05aab6}
- Grant Administrators "Full Control"
- Change Attributes DWORD to a0600000
- (Optional) Revert permissions on HKEY_CLASSES_ROOT\CLSID{679f85cb-0220-4080-b29b-5540cc05aab6}, remove "Full Control" and make SYSTEM the owner again.
Apply Changes
- Reboot or Kill explorer.exe in task manager and re-launch.
Reference
http://www.windowscentral.com/how-remove-quick-access-file-explorer-windows-10