Hello pcnwm,
The SORT BY/TYPE option is not part of the Sort By menu, by default. It has to be added manually. The column names listed in the View menu bar will depend on what you have the folder template set as.
If you have manually enabled this and disappears after ever restart, I suggest that you follow the below steps to fix it.
1. Open Windows Explorer, click on Organize on the left hand corner.
2. Select ‘Folder and file options’.
3. When the "Folder Options" multi-tabbed dialog box appears, click the "View" tab.
4. Underneath "Advanced Settings", check "Always Show Menus".
5. Click on apply and click on OK.
Check if you are able to sort by type.
Thanks,
Irfan H, Microsoft Answers Support Engineer. Visit our Microsoft Answers Feedback Forum and let us know what you think.