How to Set Up a New PC From Scratch (Day-One Checklist)
A practical, step-by-step day-one checklist for setting up a new PC from scratch: first boot, BIOS/UEFI basics, Windows install, drivers, updates, security, backups, and a quick stability check—plus common mistakes to避免.
TL;DR
- Quick hardware check: cables, ports, airflow, and that your monitors are connected to the right ports (if necessary, GPU and NOT the motherboard or a GPIO header).
- If this is your first boot, ensure your storage and RAM are being detected by the BIOS or UEFI; change the boot order, and then, if you know what it means, turn on XMP or EXPO.
- Boot into your OS (usually Windows 11). Don’t skip installing updates; run Windows Update (or Windows Update in Settings) for most of the day until you’re freshly up-to-date.
- Download and install your core drivers. Starting with your chipset motherboard drivers, then your graphics card GPU, followed by your Wi-Fi/LAN drivers, and finally audio. Go to official vendor site pages for these.
- Turn on the basics for recovery and system protection. Turn on System Protection (so you can later create a restore point if you need to roll back 1) and set up device encryption (Device Encryption or BitLocker).
- Make backups a priority: The day you set up your computer, figure out at least one backup option that suits your needs (cloud or external-drive backup) for your Documents, Desktop, and Pictures at a minimum.
- Run the most basic version of a stress test. Make sure your PC restarts, sleeps, and wakes successfully, and then make sure your temperatures are within the safe levels while your games and other programs are installing and loading.
What “from scratch” means (and whom this list is for)
This checklist read-through assumes one of three situations: You built a desktop; you bought a prebuilt system and want to get rid of all the bloat and set up a clean PC for yourself; or you’re doing a fresh install of your operating system to a new or freshly wiped drive. The goal is to be running a safe, usable PC by the time day one is over—and to not spend hours grinding through optimizing your settings that can wait until later.
If this PC is going to be used for work, school, taxes, or anything else, make sure you establish your updates, encryption, and backups first. Performance can wait.
Before turning it on: 10-minute physical checklist
Plug the monitor into the correct output: assuming you have a dedicated GPU, use the ports on the GPU (not the motherboard) unless you intentionally want to be using integrated graphics.
Use a surge protector (or UPS if you have one)—and do so especially if you flash a firmware update at first.
Double-check that all external cables are fully seated: power, display, keyboard/mouse, ethernet if you’ll use it, speakers or headset.
If you built this PC with a cooler, make sure the CPU cooler fan/pump is connected to the proper header and nothing is obstructing fans.
If you’re going to use Wi‑Fi, pop the external antenna(s) onto the back of the motherboard/Wi‑Fi card for a stronger connection before starting setup.
Have another phone/tablet device ready to go: you might need to download drivers or find a manual.
First boot: BIOS/UEFI essentials (don’t over-tweak on day one)
When you first pull with power on, you should instantly see a boot logo. You want to enter BIOS, commonly a key like Delete or F2. Your acceleration mission is to confirm that everything looks healthy and set for OS installation—not to chase maximum performance on a first boot.
Your first step is to check if it sees what you have: CPU model, total RAM, and your SSDs (or HDDs, if you’re sad). If it’s missing a drive, resolve that now. Reseat cables or that M.2 drive you installed before you install the OS. Now:
Set the date and time (useful for certificates, updates, and logging into your account).
Set your boot order: USB installer first, temporarily, if you’re about to install Windows.
(Optional, but only if you understand what this does, and want to try for your rated RAM speed): Go ahead and find and enable XMP/DOCP/EXPO if
If you see instability afterwards, this is one of the first things to reset back to default.
5. Verify Secure Boot and TPM is enabled if you’re installing Windows 11 (most systems default to this already, but some older motherboards don’t and Windows won’t install right unless this is turned on).
6. Make sure you save changes and reboot.
A BIOS update can improve stability and security, but it’s risky if done incorrectly or if power is interrupted. If your system is brand new and stable, you can put off BIOS updating until after the OS is installed—unless you specifically need a BIOS update for CPU support, RAM compatibility, or a specific security fix you plan to install to guard against a published problem.
If you want to update your BIOS/UEFI today (the safe way):
- Never use the BIOS file unless it is the one specifically for your motherboard/PC model (don’t guess).
- Use a small USB drive formatted as FAT32 when the vendor suggests it.
- Do not shut down, reboot, or pull the USB drive during the flash process (that includes accidentally bumping it out of port).
- Keep your recovery key handy in case you use drive encryption later (Device Encryption/BitLocker)—some vendors suggest suspending encryption prior to updating firmware.
Install your operating system (generally Windows 11)
If your PC came with Windows preinstalled you should theoretically be able to do a clean install by resetting Windows or reinstalling from installation media, etc. if you wanted to. But if you built your own PC and started with an empty drive, you should install Windows from your own bootable USB.
- Create (or plug in) your Windows installation USB and boot from that.
- Select a language and keyboard then select a clean install to the correct drive (make sure the drive size/model is correct so you aren’t wiping the wrong disk).
When it comes to accounts: choose the one that suits your reality. Syncing device encryption keys is more straightforward if you do use a Microsoft account, and for those who prefer not to be linked to the cloud, a local account is a better choice.
- Do the first-time setup and land on the Windows desktop.
Windows 10 went end of support on October 14, 2025. If you’re setting up a PC in 2026, consider Windows 11 your only option unless you have a specific compatibility reason.
Day-one updates: do all this before you start installing a million apps
A lot of people install everything then perform a Windows update once everything is on board — don’t do this. Updating to include the latest driver versions and bug fixes is essential, and you want to do it now to avoid pointless troubleshooting down the line:
- Run Windows Update: Go to Settings → Windows Update and hit Check for updates. Install everything offered, reboot, and then check for updates again until there are no important updates remaining.
- Chipset drivers (very important on AMD systems). Find these from your CPU/chipset vendor or your motherboard/laptop support page.
- GPU drivers. You can normally use either the page that the board vendor has made available or the NVIDIA/AMD/Intel site directly; you don’t really want to use those dodgy driver download sites.
- Network and audio drivers. Usually Windows delivers a good driver for these, so only download those from OEM sites if you’re experiencing a lot of Wi‑Fi dropping, Bluetooth is missing, audio devices aren’t being detected, etc.
- Finally: Check Device Manager and make sure there are no “Unknown device” things in there.
Driver order that tends to avoid headaches
- Windows Update (first pass) to get core patches and many baseline drivers quickly
- Chipset / platform drivers for stabilizing USB, power management, PCIe, platform devices (e.g., SMBus, thermal sensors)
- GPU driver for fixing issues with detection, performance, game/app compatibility
- Wi‑Fi/LAN + Bluetooth for connecting peripherals and wireless connections
- Audio + specialty devices last since they are low-risk for blocking the rest of setup
Security essentials for day one (worth doing even for “just gaming”)
- Verify that you have real-time protection on in Windows Security (this is default on most installs)
- Turn on Device Encryption/BitLocker if your PC supports it, and if you’re comfortable managing a recovery key
- Store your encryption recovery key somewhere you’ll be able to access it without this PC (e.g., your Microsoft account, password manager secure note, or printed copy in a safe)
- Turn on System Protection (restore points) and create a manual restore point once you finish drivers and updates
- Sign in to key accounts (email, game launchers, etc.) and enable multi-factor authentication (wherever possible)
Encryption is only “set-and-forget” if you can recover.
Losing your BitLocker/Device Encryption recovery key can lock you out of your own data after a motherboard/firmware change or repair.. Don’t skip the recovery key step.
Backups on day one: the minimum that actually protects you
A new PC is most likely to fail (or get misconfigured) in the first few days. Set up a basic backup now so you can recover quickly if a driver, update, or app install goes south.
- Pick at least one backup destination: cloud storage, an external SSD/HDD, or a NAS.
- Back up your personal folders first: Desktop, Documents, Pictures, Videos, and any project folders you create on day one.
- If you do creative work or keep a large library of games: decide early where data should live (on your OS drive, vs a secondary drive) so you don’t reorganize later.
- Consider a “golden point” point restore: after everything updates + drivers + security settings, take a restore point and note date/time.
Must-check Windows settings (fast wins)
- Set display basics: correct resolution, refresh rate ect. (if you happen to have a 120Hz/144Hz/165Hz+ monitor)
- Set your power behavior: choose a sensible power mode, set your own sleep times, and confirm sleep/wake works.
- Review startup apps and disable anything that you don’t want automatically starting on every boot, especially on a prebult PC.
- Come to a “settled” state for app defaults (browser, PDF view) links and documents all start opening the way you expect.
- If available, turn on a PIN (Windows Hello) which is, of course, to fast for you and
good for my little fingers.A quick stability check (30–60 minutes) before you call it “done”
You don’t need extreme stress tests on day one, but you do want to catch obvious issues early (bad RAM seating, unstable EXPO/XMP, overheating from an improperly mounted cooler, flaky Wi‑Fi drivers, etc.).
- Restart the PC twice after updates/drivers to confirm clean boots.
- Test sleep/wake once (a surprising number of driver issues show up here).
- Open Task Manager and confirm idle CPU usage looks reasonable (not stuck at high usage with no apps open).
- Do a basic download test and a short video call test if you’ll use the PC for meetings.
- Optional: run Windows Memory Diagnostic overnight if you suspect RAM issues, or if you enabled XMP/EXPO.
Day-One Setup Checklist (printable)
| Checklist Item | How to Check | Checked? |
|---|---|---|
| Physical | Monitor connected to the right video output (GPU vs motherboard) and set to right input | ☐ |
| BIOS/UEFI | CPU/RAM/storage detected; boot order set to the installer | ☐ |
| OS | Windows installed and activated (if applicable) | ☐ |
| Updates | Windows Update run to completion (reboot + re-check until clean) | ☐ |
| Drivers | Chipset drivers installed (if need + GPU drivers installed from official source) | ☐ |
| Security | Device Encryption/BitLocker decision made; recovery key stored safely | ☐ |
| Recovery | System Protection enabled + manual restore point created | ☐ |
| Backups | At least one backup destination configured (cloud/external/NAS) for personal folders | ☐ |
| Settings | Display refresh rate confirmed; sleep/wake tested | ☐ |
| Stability | Two clean restarts completed; no unknown devices in Device Manager | ☐ |
Now, common day-one mistakes (and how to avoid them):
- “Trojan horse” driver updaters: get drivers from Windows Update or the hardware vendor’s official site instead.
- Updating the BIOS without a stable power source: use a surge protector/UPS and read your motherboard vendor’s instructions carefully!
- Skipping Windows Update because “it takes too long” : most of the early weirdness disappears after the update cycle is complete!
(And some things can wait optimizations-wise, until you’ve used your computer for a while and it lasts for a while.)
USEFUL INFO
- Forgetting the encryption recovery key: install Windows, get into everything, and then store it before you consider encryption “done.”
- Chasing performance tweaks immediately: Tweaked curves and power for fans, overclocking, undervolting, all of it’s great—once the machine is sturdy enough that you have a full backup and restore point.
FAQ
Q: Should I update BIOS on a brand-new PC on day one?
A: Short answer: Only if you really, really need it (or if no such issue, or if per vendor guidance). If it’s at least working normally and seems stable, it’s reasonable to install the OS and do OS updates first, and then schedule the BIOS update for “later” when convenient and with power that is stable.
Q: Do I really need chipset drivers if everything is working in Windows?
A: In most cases, yes. You’d really like to have them, especially if you want to be on AMD platforms. (Less snappy sleep-wake app processes, USB dropouts, or showing unknown devices in Device Manager.Extreme cases. Chipset drivers also improve quite a lot related to power management, device detection, and stable connections.
Q: What’s the safest way to get GPU drivers?
A: Use Nvidia/AMD/Intel’s direct download sites, and avoid third-party download sites that will gladly download adware or incorrect drivers.
Q: If I turn on Device Encryption or BitLocker, what’s the one thing I must do?
A: Back up the recovery key somewhere outside the PC. If you ever need it and don’t have it handy, all information/data access will be lost.
Q: How long should a day-one setup take?
A: If it’s typically a Windows install, an updates download, and chipset drivers, then 1-3 hours. If you do all of the BIOS and are downloading apps and games, it could be quite a bit longer.