Windows 10: Converting red-only files into one that can be altered

Can anyone help with advice as to how I can convert read-only files into one that can be edited and saved?

:)

 

The option converting m4a files to wma files in windows 10 is disappeared

Hi,

The missing option to convert files can be caused by changes made in your PC. Due to some restrictions, we weren't able to view your video. We'd like to know more information so we can provide a solution suitable to your concern. Can you provide the answers
to the questions below?

• What app are you using to convert the files?
• When did the issue start to happen?
• Were there any changes made to your device prior to the issue?
• Have you done any troubleshooting steps so far?

In the meantime, if you're using an app to convert files, we suggest updating it as an initial troubleshooting step to resolve the issue.

 

The option converting m4a files to wma files in windows 10 is disappeared

• What app are you using to convert the files?

I don't use any app to convert the files. I just copy the m4a files from my music folder. Then I paste the m4a files in my android phone drive that connected to my laptop. Then a windows pop-up that shows the option converting m4a files to wma files appears.
You can see the windows pop-up in below picture. Now the windows pop-up is disappeared.





This picture was taken a screenshot from the video

• When did the issue start to happen?

I found this problem last week. However, I didn't convert m4a files to wma files since May, 2017.

• Were there any changes made to your device prior to the issue?

I updated windows several times prior to the issue.

• Have you done any troubleshooting steps so far?

I haven't done any troubleshooting steps.

 

Convert vob files into mp4 (chromecast)

avgo video converter could be taken into list