Good afternoon.
Recently installed Windows 11. I absolutely did not like the taskbar and the start menu. I want to try to fix the situation with the help of your program.
Please help customize the start menu. I need it to open in full screen and there are shortcuts to the applications I need. Also, I want to ask: is there any quick way to edit the start menu? Entering the path for each program and its name is very long.

If all you want to do is return the Start menu (and the taskbar) to the traditional look and feel you can just use one of the Start Menu replacement applications (Classic Menu, Startisback++, Start11,....).

If you want to customise the taskbar and / or the Start menu then Winstep can definitely help.
See http://www.winstep.net/products.asp and http://www.winstep.net/comparisonfaq.asp

NextStart (part of Winstep Extreme) enables a bespoke taskbar to be created together with a custom start menu.

There is also a Start Menu Organiser which allows you to reconfigure the standard Start Menu category layout - and which can be used in conjunction with the Start Menu replacement applications mentioned above.

All he wants , it seems to me from what he wrote, is to have the Win 10 type start menu in full screen - goodness alone knows why anybody would want that but that's his choice. I don't know if any of those programs listed can do that under Win 11, it's certainly still uncharted territory as it were, and certainly NextSTART can't help there. However, it can give him a custom taskbar but with very different functionality than the standard Win 10 one (and much more functionality at that!).