Last week, Quark Inc, developers of the popular page layout app, QuarkXpress, advised users to delay their upgrade to Windows 10 Creators Update until a fix was released to resolve compatibility issues. The fix is now available and applies primarily to versions 2015 and 2016 of QuarkXpress running on Windows 10; earlier versions are not affected.
 

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Hi all,

the newest update for Windows 10 – automatically distributed by Microsoft last week – has a huge impact on QuarkXPress 2015/2016:
Most file operations (like OPEN and SAVE) do not work anymore.

So if you are on Windows 10 and are using Update 1703 (Creators Update) or plan to use it, please apply this registry patch.
Microsoft supplied us the patch and it is described here:
https://msdn.microsoft.com/en-us/library/mt765152.aspx

You can apply this registry switch manually or use following instructions:

How to apply the registry patch for Windows 10

1. Prerequisite Check:
   You ONLY need to do this if you are using QuarkXPress 2015 or 2016 on Windows.
   And only if you are using Windows 10.
   (Windows 7 and 8 are not affected and also not QuarkXPress 10 or before).
2. Always have a current backup available.
3. Download the following ZIP file: http://www.quarkforums.com/resources/Wi ... xx_Fix.zip
4. Right-mouse-click to UNZIP. This will unzip a file called "Win_10_1703_QuarkXPress Fix.txt"
5. Double-click to verify that the file has the following entry:
   Windows Registry Editor Version 5.00
   [HKEY_CURRENT_USER\SOFTWARE\Microsoft\.NETFramework]
   "UseLegacyJit"=dword:00000001
   (if you see any other text, please do not apply the patch and contact us at support@quark.com)
6. Close your Text Editor and rename the file to "Win_10_1703_QuarkXPress Fix.reg"
   (so rename just the file extension the .txt to .reg)
7. Double-click the .reg file to install the patch and accept the warning.

Now QuarkXPress 2015/2016 should work on Windows 10 Creators Update without any issues or restrictions. You might have to reboot your machine first.

Thanks
Matthias

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If you use QuarkXpress versions 2015 or 2016, leave a comment and let us know if it works. Also remember to backup your registry before applying these changes.