Preview Pane Issues – Word could not create the work file

Word Preview : HKCR\CLSID{84F66100-FF7C-4fb4-B0C0-02CD7FB668FE}
PowerPoint Preview : HKCR\CLSID{65235197-874B-4A07-BDC5-E65EA825B718}
Excel Preview : HKCR\CLSID{00020827-0000-0000-C000-000000000046}

For Word:

Delete registry key : HKCR\CLSID{84F66100-FF7C-4fb4-B0C0-02CD7FB668FE}