After downloading PSE 15 update received this: This site can’t be reached The webpage at file:///C:/%5CUsers%5CMike%5CAppData%5CLocal%5CTemp%5Cfla541C.tmp.html might be temporarily down or it may have moved permanently to a new web address. ERR_INVALID_URL
is there a new address?
Where did you download the update from? Installation files are normally saved into the downloads folder where you unzip (extract all) and then double-click Setup.
Only updates to current versions are now available.
Yes there are no updates for older versions. No need to worry if your softwares is still working ok.