Question Fresh installed system issues!

Jul 27, 2019
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Hi!

I have installed a new copy of windows 10 on my pc. First i had an issue with the location where to install it.
There's an error saying like the format of my hdd isn't the right one (GPT i think).
Then i found a tutorial on youtube how to fix that, and it worked then i installed the windows.
But the restarts between the installation they took a lot of time. I thought ok that's normal for the first time.
After i finished everything i restarted my pc once more and theres just no picture at all.
The led light on the monitor didn't signalize the monitor was on, same for the hdd light on the case.
After about two minutes it started booting normal and it works now, but every time i turn off or restart my pc that is happening again and again.
So if someone had this problem and knows how to solve it, please help me i would appreciate it..
(sorry if my english is bad)
I hope someone knows how to fix this.