1.    28 Aug 2016 #1
    Join Date : Aug 2016
    Posts : 2
    Windows 10

    Windows 10 Anniversary Update Hosed my Calendar

    I found out that the Anniversary Update which I downloaded and installed on August 3rd completely hosed all my calendar entries (Windows 10 Calendar App) for the last several years. I have a lot of medical information - not critical, of course - but handy and important for me that was erased.

    Is there any way to get this information back? I do use Carbonite on line backup and I have a system image from about 2 months ago, but I really don't want to go that route as I live in the country and it took almost a day and a half for the Anniversary Update to download.

    Any suggestions or am I just screwed?
      My System SpecsSystem Spec

  2.    28 Aug 2016 #2
    Join Date : Sep 2014
    Posts : 2,891
    Windows 10 Pro

    I don't mean this to sound mean, but if the data was that important, you probably should have used an online calendar backing (Calendar can use your Outlook.com, Hotmail, etc.. calendar if you link them).

    I'm curious though.. how do you have several years of calendar data in a calendar app that is only a year old?
      My System SpecsSystem Spec

  3.    29 Aug 2016 #3
    Join Date : Aug 2016
    Posts : 2
    Windows 10

    You aren't mean at all! I do back up religiously, but it never occurred to me that the Anniversary Update would wipe out everything. I've been using the Calendar app since Windows 8 and then Windows 8.1. When I did the Windows 10 upgrade, all my stuff was still in the Calendar app from when I first started using it. I also use the Mail app to monitor numerous emails for our American Legion post and everything in that app was still there just fine. As were all my settings for the numerous places around the globe that I monitor in the Weather app. The only one that got wiped out was the Calendar app.
      My System SpecsSystem Spec

  4.    30 Aug 2016 #4
    Join Date : Jan 2015
    UK, Midlands
    Posts : 5,803
    Win 10 Pro (1607)

    Seems the key would be to work out where the Calendar app stores its data... have you researched that?
    I would expect it to be in
    C:\Program Files\WindowsApps in the folder related to Calendar.

    Now note normally access is blocked for security reasons. That would suggest your backups- even if your backup was specified to include this- did not include the folder. (A disk image would, of course).

    See e.g.
    How to Get Access to WindowsApps Folder in Windows 10
    on how to get access to this.

    Sadly some have experienced data not being transferred in other areas with these upgrades (1511 and this one).

    And you could provide feedback to MS of course..
      My System SpecsSystem Spec


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