Microsoft has announced that they have paused the rollout for the most recent feature update of Windows 10 (version 1809). Microsoft is investigating reports of users missing files following the update.
If you have installed this update and notice that data or files are missing from your device, please contact the IT Support Centre.
Microsoft has published the following concerning this update: https://support.microsoft.com/en-ca/help/4464619/windows-10-update-history
For additional information, please contact the IT Support Centre at (613-533-6666).