Why does it occur?
You had better try these methods in order until your problem gets fixed.
How to Fix PC Stuck on Gigabyte Screen?

Fix 2: Boot Your PC without Connecting the Peripherals
Step 1.
Press and hold thepowerbutton until the computer powers off.
Disconnect all the peripherals from your rig.

Press thepowerbutton again to boot your box.
In this case, you mustenter BIOSand change the parameters to reset the boot sequence.
PressF10to save the parameters and reboot your gear again.
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Press and hold thepowerbutton until your box powers off.
Unplug the AC power cord from the power supply and open your rig case cover.
Find the CMOS battery on the motherboard and remove it.

Wait for about 5 minutes and then reinsert the CMOS battery.
Heres how to check the RAM.
Step 1. initiate the system unit and locate the RAMs on the motherboard.

Remove the RAMs and clean them.
Insert a RAM at a time when trying to boot each time.
If your box cannot boot with certain RAM, you should probably replace it.
Step 1.Create a bootable USB drive on another computerthat can work normally.
Boot your gear from this drive.
drop your language and other preferences and click onNextto continue.
Laptop stuck on Preparing Automatic Repair during startup?
Read this post and find out how to effectively solve this issue.
What if you suffer from similar problems in the future?
Will you repeat the same procedure as you do this time?
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To do so:
Step 1.
Download this free tool and run it.
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Step 2.
Click onBack Up Nowto start the process.
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