On one PC running Windows 10 Version1903, searches on the C: drive are successful, but searches on mapped network drives fail. When you type a search string, such as *.txt, nothing happens. However, if you replace the drive letter in the full path with the corresponding \\<server>\<share>, the search succeeds. At first all network drives were showing a red "X", so I tried various solutions to resolve that issue. The red "X" no longer appears, but the problem persists. Thank you in advance for your thoughts on how to resolve this issue.