A problem occured when trying to save your preferences in Handbrake 1.0.7 Windows 10 build 16232.

[doanga2007]

A problem occured when trying to save your preferences in Handbrake 1.0.7 Windows 10 build 16232.

Pic :

Error Log :

A problem occured when trying to save your preferences.
A problem occured when trying to save your preferences.
Any settings you changed may need to be reset the next time HandBrake launches.
System.IO.IOException: The process cannot access the file 'C:\Users\sumate\AppData\Roaming\HandBrake\settings.xml' because it is being used by another process.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access)
at HandBrakeWPF.Services.UserSettingService.Save() in C:\HandBrake\hbworkspace\workspace\Release_WindowsGui64\HandBrake\win\CS\HandBrakeWPF\Services\UserSettingService.cs:line 127

[s55]

Somethings got a hold of C:\Users\sumate\AppData\Roaming\HandBrake\settings.xml and is preventing HB from saving to it.

You can try deleting it to reset everything and see if that works.