I own a Mavic 2Pro Drone which outputs video MP4 files in H265, DLOGM 10 bit colour profile. I used Movie Studio 17 Platinum for years to edit my videos and it was great. When my Lenovo Yoke (i7) packed up recently, I bought a new Dell XPS17 with i9 processor and NVIDIA RTX3060 graphics card. I thought this would make light work of my video editing, but the opposite has happened. MS17P will not accept and of the H265 formats. I've downloaded the HEVC codec from the microsoft store and that made no difference. I can play the files on my laptop and even edit in the native Microsoft Video Editor app. However this doesn't permit colour grading etc. I've tried everything including downloading the trial version of Magic Movie Studio 2023 (which gives the message "Unfortunatley the function 'HVEC codec is not available due to licencing conditions") when I try to use H265 format. Can you offer me any advice please?

This is the media data output for the type of file I'm struggling with:

General
Complete name                            : D:\Pontiac\DJI_0967.MP4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/mp41)
File size                                : 825 MiB
Duration                                 : 1 min 9 s
Overall bit rate                         : 99.9 Mb/s
Encoded date                             : UTC 2022-08-29 07:33:57
Tagged date                              : UTC 2022-08-29 07:33:57
Writing application                      : Lavf56.15.102

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5@Main
Codec ID                                 : hvc1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 1 min 9 s
Bit rate                                 : 99.9 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 (30000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.402
Stream size                              : 825 MiB (100%)
Encoded date                             : UTC 2022-08-29 07:33:57
Tagged date                              : UTC 2022-08-29 07:33:57
Codec configuration box                  : hvcC