Define the purpose of the PC
Set a budget
Choose a compatible CPU
Choose a compatible motherboard
Choose compatible RAM
Choose a storage drive
Choose a graphics card if needed
Choose a power supply
Choose a PC case
Choose a CPU cooler
Check component compatibility
Gather tools and materials
Install the CPU on the motherboard
Install the RAM on the motherboard
Install the storage drive
Install the CPU cooler
Install the motherboard into the case
Install the power supply into the case
Install the graphics card
Connect all power cables
Connect all case cables
Organize and secure cables
Close the case
Connect monitor, keyboard, and mouse
Power on the PC
Enter BIOS or UEFI
Verify hardware is detected
Install the operating system
Install drivers and updates
Test system stability
Set up software and preferences