My apologies that the title is not more descriptive but the most distinguishing detail about my problem is a complete lack of distinguishing details.
No error codes no repeatable cause no entries in the event viewer and no log files.
Let me give an example: I am browsing the web in Microsoft edge and after about 10 minutes I click a link and nothing happens, I click the back arrow and nothing happens, I try to change tabs and that works the first try so I try to change tabs again and nothing happens, I try to close the window and you guessed it.. nothing happens. I do win+x and click task manager to end the task manually and while the task manager opens nothing can be clicked on and the cpu usage and other fields all read zero and don't update.. so I click the x and it closes.. I try to open it again the same way and it doesn't open.. I try win+x again nothing happens I click the start button and it opens so I go through the menus to do a restart.. when I click ok the menu and windows close like they are supposed to but nothing happens.. I click Start again and nothing happens, I right click the start button that gives me a menu so I try to shutdown and it looks like it starts to close everything but then stops on a blank black screen with just a mouse cursor. Hard reset is only remaining option.
While the details change every time depending on what I try the same pattern seems to hold.. things just seem to stop suddenly without warning or a reason and while stuff seems like it works for example a program will open (though you cant interact with it after that) its like it cant do the same thing twice anymore.. if you successfully open a program and close it then it wont open again.. if you open a menu once and close it then it wont open again or more baffling still it will work a random number of times (2 to 4 usually) then stop, etc.
Windows 10 worked fine for over a month before this started happening but now its been doing this for about 3 weeks.
Tried a clean reinstall already.
Everything passes every hardware diagnostic I can find and running stress tests on the system outside of windows 10 (booting Hirens or another utility disk) results in it being stable as a mountain goat no matter how long I let it run at 100% use.
By the way: the last time it slow locked (that's what I'm calling it) before posting this after hard rebooting the system it changed one of the colors in my windows theme from blue to orange.. seriously is Bill Gates trolling me?