There in window7 also i could not see wyupdate in Processes but its downloading the updates.
Make sure your Task Manager is set to show processes of all users. (Click the checkbox "Show processes from all users")
Message: Error trying to save file: Error downloading "https://theshare.thomsonreuters.com/sites/trta/sites/pts/Outsourcing/DMT/sotware_updates/ptstools/updates/wyServer.wys": The remote server returned an error: (401) Unauthorized.
So how can we change authorization to my server to access files?
This depends on your server. Ask your IT administrator why you can't access the file. This isn't a problem with wyUpdate. This is a problem with your network.