Musescore 3 cannot save files on the latest Windows 10
I just upgraded to Musescore 3.0.2.5315 from Musescore 2.3.2. I'm on the Windows Insider Program Fast Track so I'm using the latest build of Windows 10 Build 18334.19h_1-release.190205-1505.
This version of Musescore will not save files to any directory or to the Desktop. I went into Windows Security, Virus and threat protection, Controlled folder access, Allow an app through controlled folder access and added C:\Program Files\MuseScore 3\bin\MuseScore3 to the allowed list. Musescore could not save anything.
I turned Controlled folder access off and Musescore could now save wherever I wanted it to.
I searched through the C:\Program Files\MuseScore 3 sub-directories and the only other .exe or .com file I could find was QtWebEngineProcess.exe. I added that to the Allowed list but that made no change.
It appears you have something going on within your program that is making Windows 10 assume that Musescore 3 is not an allowed program when it comes to saving files.
Comments
"Windows 10 assume[s] that Musescore 3 is not an allowed program when it comes to saving files"
Yes, I agree. Other software with which I've had a similar problem:
- my Canon printer driver
- QGIS, which has a similar documented problem (https://issues.qgis.org/issues/21290)
I'm surprised that no one has responded to your comment before.
Windows Insider Program engineers spent a lot of time looking at this on my machine yesterday and blamed my BIOS for not being compatible with Windows 10 updates, and corruption of my hard disk, completely unaware that this is a problem with Controlled Folder Access. Their ignorance is partly excused by the fact that CFA wasn't generating the expected warning message when it blocked a file write.
Both QGIS and MuseScore were forced to treat the Save command for a new file as an Open command, which inevitably generates an error message like:
F:\Desktop\Test.mscz [name of file not yet saved!]
File not found.
Check the filename and try again.
MuseScore v3.0.5 seems to have convinced Microsoft that it isn't malware!