In Lightroom, after you upgrade to Windows 10 you get the error 'Unexpected error opening catalog' when you try to open a catalog.


Solution 1: Install the Microsoft Visual C++ Redistributable 2012

Solution 2: Run Lightroom as an Administrator.

  1. Open the Program Files/Adobe/Adobe Lightroom folder.
  2. Right-click on the Lightroom.exe file.
  3. Choose Run as administrator.

Solution 3: Change the permissions on your catalog's folder.

  1. Select the folder your catalog is in. By default, this is your Pictures/Lightroom folder. 
  2. Right-click on that folder. 
  3. Choose Properties > Security > Edit.
  4. Select your user name in the Group or user names section. and click Full Control under Permissions. 
  5. Click Apply, then click OK out of all the dialog boxes. 

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