Hi Matthias
I had used Lilypond on Windows10 for a while with no problems, however recent updates have caused quite a few different issues and permissions is a big one. My lily files were all in C:\windows\users\peter\lilypool and the lilypond program in C:\ProgramFiles(86)\Lilypond and Frescobaldi in in C:\ProgramFiles(86)\Frescobaldi. Everything worked fine but after one fateful OS update I found to extra folders in C:\windows\users\ , PETERDESKTOP and PETERDESKTOP.000. Frescobaldi ceased to work the solution I came to was to run Frescobaldi as Administrator (even though my account peter is an administrator) somehow these unbidden "users" had screwed things. I have been trying to get some sense out of MS for days without any luck, other issues also abound. ADVICE "Do not join the Windows Insider program - unless you have plenty of spare time and a good working knowledge of the Windows OS methodology" Regards Peter
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