Ensure Thumbnails Are Enabled

1. Open File Explorer.
2. Click on three horizontal dots at the right end of the ribbon tabs and then choose Options from the menu.
3. In the Folder Options window, uncheck the box beside Always show icons, never thumbnails (if it’s checked).
4. Click Apply and hit OK

Using Regedit navigate to

Computer\HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\

Click on Windows and add new key called Explorer

Computer\HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Explorer

Click on Explorer and add 32-bit DWORD DisableSearchBoxSuggestions = 1

Restart