How do I stop Windows 11 from changing my default settings?

Hopefully, you will answer my question. IT is about the default media player, not the web browser. Please explain what you're saying. I can't find Let Windows manage my default apps. I've tried the Default apps and Apps categories. I search for Let Windows manage my default apps. It says No results found for Let Windows manage my default apps. I use Windows 11 Pro. It seems to happen every time Windows updates. It's updated several times in the last few weeks. I know you're aware of the hurried, failed update and the rushed replacement. Two experts have said they were improperly released. I'm sad that I can't receive only security updates like I used to with Windows 10. I don't install unnecessary updates on my Windows 10 computer. I still have another computer that I paid for a year of security updates with Windows 10. August 18th is the date it will no longer receive them. I originally bought two identical HPS. I purchased the second for a backup. I'm sad that I "upgraded" one to Windows 11. The one with Windows 10 is still running incredibly fast. Windows 11 doesn't give me any advantages. As you know, Windows accesses the registry all the time. It made a big difference to receive only essential updates. Many of the updates are not needed. I don't have Microsoft Office. The one that failed was mainly for the Office application. I used to be able to read the information for all the updates and pick and choose the ones I wanted. I still do with Windows 10 Pro. I've set Windows 11 Update to pause updates for an extended period. I think 15 weeks, as long as Windows Update allows me to pause them. I know this could make my computer vulnerable to attacks. I use a local account with Bitdefender and Nord VPN. Microsoft Defender sucks! I still receive the updates, which I don't terribly mind.

I use Kakao's PotPlayer to play media files. It's great! I can play a video from the start, or anywhere for that matter. I can press Alt + A to start recording. I can tell it to record any video format, size, or bitrate, etc. It transcodes on the fly if necessary. It will play and record any file, unless it's copyright-protected with DRM, etc, of course. I can play GIFs, JPEGs, JIFs, etc, with MP3s, etc. I can easily combine and create so many different kinds of files. I used to be proficient with computers. I was never an expert like you. That's why I'm asking you.

I'm getting old. I still use an old HP tower computer with a 3rd-generation Core i7 3770. It automatically runs up to 3.9 GHz with Turbo Boost. and a fan mounted on them. It came stock from HP. on my Windows 1o computer. Windows 11 doesn't support the Turbo Boost. It only runs at 3.57 GHz. Neither of them ever becomes hot. I mounted the insides in XBLADE gaming cases for aesthetics and cooling. They have 3 fans. One in the front, one on the removable side panel, and one on the rear. They still run faster than most laptops I've used. They are over 14 years old. I've had the one I use daily, on 24 hours a day, except for once a year, when I shut it off. Open it up and clean the motherboard, CPU, and cooling fans with computer cleaning solvents. I'm sure it wouldn't impress most people. That's not why I built it. I used to repair electronics on motherboards and other components, back when most people wanted to repair their computers rather than throw them away. I wanted something durable. Thank you so very much in advance for your reply.