Unresponsive windows/taskbar after start-up

[Cavox]

Hello, I need some help with an issue with my HP Pavilion laptop.

I've had an older HP Laptop that worked fine until about 2 weeks ago when suddenly, random applications and system windows stopped responding. I could mouse over things on my task bar and open new programs, but once they entered the main desktop "space" they've stopped responding to any actions - close, minimize, anything at all stopped responding to cursor movements and clicks. It looked like Windows Explorer crashed, but when I tried to open Task Manager through the combination ctrl + shift + esc to reset it even that froze itself. The only way to take back control of the PC was to either use ctrl + alt + delete (the emergency screen with the  "lock", "log out", "Task manager" etc. options somehow unlocked all the windows again for some time) or restarting the PC HOPING it won't freeze on start up. I've reinstalled Windows 10, first by keeping my personal files and, when it didn't solve the issue, I've made a complete system restore with deleting every file on the disk - a truly drastic measure. It didn't help.

"Welp" I thought. I guess the laptop is just too old, I had it for like 6 years already and it was always a low-end type. 

So I've bought a new HP Pavilion Gaming 16-a0033nw. I've made a Windows 10 boot USB, set up partitions and got to installing.

Once the system got up, and it welcomed me with a heartly welcome sign.... THE SYSTEM HAD UNRESPONSIVE TASK BAR. It was the SAME issue as on the previous PC. It was a clean boot, on a brand new HP laptop, I couldn't have infected it with any viruses (before you even ask). I didn't have a chance to install or do anything. My Microsoft Edge (browser) just froze with unresponsive "minimize", "maximize" and "close" buttons. I could still launch new windows from the desktop, but once they've opened they got stuck as well. And what do you know - the good, old ctrl + alt + delete ALSO resolved all of the issues FOR SOME TIME.

I'm getting really sick & tired at this point. I'm after 3 system set-ups in a week, but I still have the same problem across 2 different laptops and it seems to me it's some HP-Windows 10 software conflict or some other issue. I seriously need help and guesses what could be wrong. I've updated Windows 10 with every patch I could find. I've installed and launched every HP update I could find (also for the BIOS). I've used the HP Hardware Diagnostics and HP Support Assistance and they found NOTHING wrong.

Please spare me the copy-paste "do a clean install" and other "restart your PC" answers, please. The problem persists and I'm not a happy camper.

[Cavox]

Bump and an update:

I've contacted HP tech support in my country.

First call - while explaining the problem the call dropped.

Second call - when I've finished explaining the tech support person told me to enter the HP diagnostics on the BIOS level (pressing ESC during boot sequence) and then the call also disconnected. I've continued to run every diagnostic test from that place - every test has been "passed" without issues.

Third call - explained the issue, the tech support person told me that he would just reinstall the system which is a cop-out and I consider that no help was given.

So that's an hour+ wasted, considering the queues I've been waiting in while waiting for the calls to connect.

I've done the sfc /scannow command from the administrator's CMD, didn't help.

Another thing:

I've talked with a friend who's better at fixing laptops than me and he told me he has the same problem with his HP laptop, however it happens "once every 10 boots, so I just ctrl + alt + del and don't bother trying to fix it". So that's another argument it's a HP software problem. Still waiting for some idea how to fix it. I'm still in the 2-week period since the purchase and if I won't fix the issue in the next 2-3 days I'm just going to refund my purchase and make sure I'll get another brand laptop next time.

[The_Fossette]

@Cavox

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