Why does My computer shut off randomly?

Question

Hi I have a computer it shuts off twice a day. I figured out one of the shut offs. The first shut off is because of a bad power supply. The second shut off is because of a OS issue. I need help figuring out how I can keep my computer from shutting off. One last thing before I tell you my specs. When I press the power button to turn my computer on the second time it's kind of like my computers in sleep mode but it's not.
Here are my specs.
I7 3770
Asus Sabertooth Z77
Samsung 850 EVO pro
3 terabyte western digital hard drive
512 Gigabyte wester digital SSD
1300 (4) 2 sticks of ram
1060 EVGA GeForce GTX SC
650 w bronze psu

PLS HELP ME!

Answer 1

In Control Panel go to Administrative Tools then in there go to Computer Management. Then in the tree in the left select Event Viewer in System Tools. Look around in there. There are many possible places that there could be relevant errors. One place in particular to look at is in Windows Logs look at System.

Answer 2

I have looked at it and every time the computer restarts I get this.
Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 1/24/2021 10:35:10 AM
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (70368744177664),(2)
User: SYSTEM
Computer: ChristophersPC
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331c3b3a-2005-44c2-ac5e-77220c37d6b4}" />
<EventID>41</EventID>
<Version>8</Version>
<Level>1</Level>
<Task>63</Task>
<Opcode>0</Opcode>
<Keywords>0x8000400000000002</Keywords>
<TimeCreated SystemTime="2021-01-24T16:35:10.9784952Z" />
<EventRecordID>4987</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="8" />
<Channel>System</Channel>
<Computer>ChristophersPC</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="BugcheckCode">0</Data>
<Data Name="BugcheckParameter1">0x0</Data>
<Data Name="BugcheckParameter2">0x0</Data>
<Data Name="BugcheckParameter3">0x0</Data>
<Data Name="BugcheckParameter4">0x0</Data>
<Data Name="SleepInProgress">0</Data>
<Data Name="PowerButtonTimestamp">0</Data>
<Data Name="BootAppStatus">0</Data>
<Data Name="Checkpoint">0</Data>
<Data Name="ConnectedStandbyInProgress">false</Data>
<Data Name="SystemSleepTransitionsToOn">5</Data>
<Data Name="CsEntryScenarioInstanceId">0</Data>
<Data Name="BugcheckInfoFromEFI">false</Data>
<Data Name="CheckpointStatus">0</Data>
<Data Name="CsEntryScenarioInstanceIdV2">0</Data>
<Data Name="LongPowerButtonPressDetected">false</Data>
</EventData>
</Event>

I also get this in the event viewer.
Error
Reported Part, Prosser core.
Error, Unknown

How does it not know the the Error but the processor core reports it?