Windows 10: permission to trim video clip

I uploaded a .mp4 file to my Windows 11 computer and I can play it by opening it in either Video or Photos but I would have to use Photos to edit trim it, but when I try it says I can't edit the file, and it also says I don't have permission to edit the file. Is there any other way to trim a video without buying a video editing app or program? Why does it have the trim option if I can't use it to trim my own video? Thanks for any help!

:)

 

Trimmed Videos in Photos App are washed out

If i trim a clip of a video and trim out the beginning then the rest of the video will be washed out. I tested it and it only washes out the video if you trim out the beginning of the video. If the trim include the beginning then the colors will be normal
for the rest of the trim.

 

Can you undo a trim from the Xbox DVR trim option or is it permanent once the trimming/trimmed clip is applied?

I had a clip that I wanted to post, but there's this clip I want to omit a section of it. The trim option looks suspicious and weird, so I tried the "Save Copy" option and it save a different file but in it has the clip that I wanted to omit. Also, I made
another copy of from the omitted video and trim it once again, and I have no idea if there's like an undo option if I ever wanted to go back or not lose the original video.

 

Cannot save trimmed videos using the Photos App

I have a couple videos that I want to trim down in the Photos App; however, every time I attempt to trim the video, Photos would crash. After crashing, a trimmed file of the video would show up, but I cannot view the new clip.