Arduino IDE won't save sketch to disk, "Media is write-protected"?

Question

Arduino

When you try to save the code "File" -> "Save" an error pops up, the file is not saved.
Everything is successfully uploaded to the board, but it refuses to save the sketch on the computer.
I reinstalled java and ran it with admin rights.
Error message

Arduino: 1.8.2 (Windows 8.1), Плата:"Arduino/Genuino Uno"

java.io.IOException: Носитель защищен от записи
  at java.io.WinNTFileSystem.createFileExclusively(Native Method)
  at java.io.File.createTempFile(File.java:2024)
  at processing.app.BaseNoGui.saveFile(BaseNoGui.java:912)
  at processing.app.SketchFile.save(SketchFile.java:287)
  at processing.app.Sketch.save(Sketch.java:138)
  at processing.app.SketchController.save(SketchController.java:344)
  at processing.app.Editor.handleSave2(Editor.java:1987)
  at processing.app.Editor.access$1900(Editor.java:78)
  at processing.app.Editor$54.run(Editor.java:1972)
  at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
  at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
  at java.awt.EventQueue.access$500(EventQueue.java:97)
  at java.awt.EventQueue$3.run(EventQueue.java:709)
  at java.awt.EventQueue$3.run(EventQueue.java:703)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
  at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
  at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
  at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
  at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
  at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Носитель защищен от записи

Answer 1

Yes, actually try the most primitive way, open the arduino as administrator, and if it doesn’t help, reinstall.