Windows 10: PC freezes on startup and shutdown

After completing my build, my PC freezes on startup and shutdowns. On startup, I can sign in but if I leave it on the log in screen too long it will freeze 5-10seconds. When I log in, I don't have any issues. When I attempt to shut down, 80% of the time the PC will freeze when its shutting down on the shut down spinner icon.I've tried 1. Re-installing windows2. Re-installing drivers3. sfc/scannow, chkdsk, etc..I see this event viewer:-System-Provider[ Name]Microsoft-Windows-WHEA-Logger[ Guid]{c26c4f3c-3f66-4e99-8f8a-39405cfed220}EventID16Version1Level2Task0Opcode0Keywords0x8000000000000000-T

:)

 

My pc takes for ever to shut down when i restart

Suggest cleaning up your startup list .There may be many services / Apps you can remove on startup which is not needed on boot or during shutdown.
Before you shutdown the Pc check what is running in Task Manager as a program or service in not killing the process on shutdown

Would suggest cleaning up running apps and services -Autoruns, StartupMonitor,HighjackThis,
Malware Scan - Malwarebytes,ADWcleaner, Combofix

 

script running on Startup and Shutdown of System is not working

Steps

• Open a run box
• type in "gpedit.msc"
• Expand Computer Configuration
• Expand Windows Settings
• Select Scripts (Startup/Shutdown)
• Double click Startup
• Click Show Files and copy/paste your file in to this folder
• Click the Add button on the startup properties
• Click Browse and double click on your script to choose it.
• "OK" out of all windows to apply the new settings.

I am generally Giving Path of My python to the startup and shutdown as steps given above

 

Can't get GPU-Z to start with Windows 8.1 startup

I'm not sure how to do that. Could you list the steps for a noob?