Desktop PC with updated W10
I have the Cortana search box visible on the task bar. Typing part or all of the file name seems to work fine, so it’s not a problem common to all installations.
Maybe a problem due to another item of software installed on all 5 computers?
An unrelated issue following last week’s W10 upgrade
The google search page crashes in Chrome. Internet Explorer and Edge.
Fixed it by going to the ‘Advanced Settings’ in Edge - de-select and re-select ‘Get Cortana to assist me in Microsoft Edge’.