RigCheck

A free, read-only checkup for Windows gaming PCs with NVIDIA, AMD or Intel hardware. It finds settings that cost you performance and estimates what fixing each one is worth.

Run it

Close your games.
Right-click the Start button and open Terminal (or Windows PowerShell). Admin isn't needed.
Paste this and press Enter:

irm https://rigcheck.narrowlake.dev/run | iex

The scan takes about 20 seconds. Afterwards it asks whether to upload the report. If you say yes, you get a link to share and a before/after comparison the next time you run it.

What it checks

CPU and power: BIOS age, AMD chipset driver, X3D cache driver, Intel 13th/14th gen microcode, power plan and processor limits.
Memory: XMP/EXPO, dual channel, mixed kits, capacity, AMD memory controller ratio.
Graphics card: driver, PCIe link, Resizable BAR, power limit, GPU scheduling, monitor plugged into the motherboard.
Display, Windows, storage, network: refresh rate, Game Mode, background recording, Memory Integrity, SSD health and space, Ethernet speed and Wi-Fi signal.
Background apps: startup apps, multiple screen recorders, RGB suites and idle CPU use.

Privacy

Nothing on your PC is changed. The script only reads settings. Read the script before you run it.
A report is saved to your Desktop either way. Uploading is optional, and the script asks first every time.
An upload contains your hardware summary, the findings and an anonymous machine ID (a one-way hash, used only to match your scans for the before/after view). Your Windows user name and PC name are removed before sending.
Reports can only be opened with their link, which can't be guessed.

Prefer not to paste commands?

Download rigcheck.ps1 and RigCheck.bat into the same folder, then double-click RigCheck.bat.

FPS estimates are typical ranges from published benchmarks, not a measurement of your PC. Some of the biggest factors, such as temperatures under load and in-game settings, aren't checked.