Question 1

Which systems are supported?

Accepted Answer

Windows 10 1809 and later, and Windows 11, with x64 builds only. From v1.5.1 the app is a native Rust build that no longer depends on .NET Framework, so no runtime install is needed.

Question 2

What is the difference between Standard and Pro?

Accepted Answer

Standard is free, fully offline, and covers core monitoring, the full hardware information centre (8 sections) with per-adapter IPv4 / IPv6, overlay drag with per-display memory, the Tools page (Disk Cleanup) with tray pinning, log export and the card layout. Pro is first to receive temperature/power, system power estimate, disk SMART, iGPU monitoring, FPS 1% Low, taskbar mode, themes, the capsule layout and in-app automatic updates.

Question 3

After clicking a [Pro] feature the app jumps to the About page?

Accepted Answer

This is expected in Standard: clicking any [Pro] item shows an explanation, and once you close it the app switches to Settings → About (version info and official channels live there); the toggle does not take effect. To use those features, get and activate Pro from the About page or the official site.

Question 4

How do I download Pro?

Accepted Answer

Click the big "Download Pro via Gitee (MSI)" button on the download page to get the 64-bit (x64) installer, or grab the EXE (NSIS), MSI or ZIP portable build from the GitHub or Gitee Releases pages.

Question 5

How do in-app updates work?

Accepted Answer

Pro supports in-app automatic update downloads: start from the tray Update now entry or check for updates in About; the app picks the faster GitHub / Gitee mirror, shows speed test and download progress and supports background downloads. The portable build updates in place, preserving settings, licence and account files.

Question 6

Does the app upload my data?

Accepted Answer

No. Monitoring data is collected and displayed locally. Standard is fully offline with no network calls; Pro connects only for activation, authorization checks, version checks, announcements and optional account actions.

Question 7

What permission does FPS monitoring need?

Accepted Answer

FPS monitoring subscribes to Windows display kernel events via ETW and needs local administrator privilege. Pro may optionally install the PawnIO driver for temperature/power (with UAC confirmation). Standard never requests elevation or installs drivers.

Question 8

What is the device identifier used for?

Accepted Answer

Pro online authorization uses one-way hashed CPU / motherboard anchors for licence management, device migration and reinstall recovery. Raw hardware identifiers are never displayed or uploaded, and the legacy Install ID is no longer used. Standard collects no device identifier.

Question 9

Where can I see disk SMART health?

Accepted Answer

SMART health and attributes are a Pro feature: see Settings → Hardware → Disk (read once when opened); NVMe requires the Microsoft standard storage driver (stornvme). The Standard hardware page shows basic disk info only (model / type / interface / capacity / temperature). If reading looks wrong, please report via the official after-sales QQ group (bottom-right of the website).

Question 10

Does Disk Cleanup delete files directly?

Accepted Answer

No. StatViewer only launches Windows Disk Cleanup (cleanmgr) for the system drive. The items to clean and the final action are confirmed in the Windows UI; the app never scans or deletes files itself.

Question 11

How do I copy a NIC's IPv4 / IPv6 address?

Accepted Answer

In Settings → Hardware → Network every IPv4 / IPv6 address has its own row with a copy icon at the end: click it to copy that address to the clipboard (the icon briefly turns into a check mark).

Question 12

When does iGPU monitoring show up?

Accepted Answer

iGPU monitoring is a Pro feature (Standard does not show the iGPU row): usage, shared-memory VRAM and frequency come from multi-source collection and normally display; temperature is derived from CPU temperature and usage when no dedicated sensor exists. On MUX direct mode or with the iGPU disabled, the system exposes no readable sensors and the row is hidden automatically. If it looks wrong, report via the official after-sales QQ group.

Question 13

What is 1% Low?

Accepted Answer

1% Low converts the 99th-percentile frame interval from roughly the last 1000 frames into an FPS figure, highlighting stutter. It follows the PresentMon / RTSS methodology, shows "--" when fewer than 100 frames are available, and is a Pro feature.

Question 14

What can go in the tray context menu?

Accepted Answer

Settings → Tools can pin Disk Cleanup to the tray context menu. Left-clicking the tray icon shows or hides the overlay; right-click offers Settings, Panel Drag, pinned tools and Exit. Available in both Standard and Pro.

Question 15

What does Pro connect to the network for?

Accepted Answer

Pro connects for activation, authorization checks, version checks, announcements and optional account actions initiated by the user. The offline grace period is 72 hours; after that Pro features are temporarily locked and recover automatically once online. Standard is fully offline.

Question 16

Do I have to bind an email account?

Accepted Answer

No. The Pro email account is optional and recommended for account ownership, support lookup and security notices; not binding it does not affect activation, authorization checks or normal use. Device migration requires a bound and verified email account.

Question 17

Will my settings be lost after reinstalling, upgrading or switching install method?

Accepted Answer

No (since v1.3.10): reinstalling, upgrading and switching between ZIP / MSI / MSIX all preserve your settings, and when the current location has no settings file the app inherits the copy from the other known location. If Pro is locked after more than 72 hours offline, your Pro settings are restored automatically once you are online or re-activated. Only clearing the settings file yourself resets to defaults.

Question 18

The app name changed in Task Manager after upgrade?

Accepted Answer

From v1.3.10 the process name, Task Manager display name and UAC program name are unified as StatViewer (StatViewer.exe); older versions may show the previous name.

Question 19

How do I migrate my licence after changing hardware?

Accepted Answer

After replacing major hardware, use the guided device migration flow; replacing a disk does not require migration. Device migration requires a bound and verified email account, and the remaining migration count is shown after you select the old device. Reinstalling, upgrading or clearing local data usually allows an automatic recovery attempt first.

Question 20

What is the difference between temporary lock, permanent revocation and device disable?

Accepted Answer

More than 72 hours offline causes a temporary Pro lock that recovers automatically when online; permanent revocation is a licence-level state and the old key cannot restore it; device disable is a machine-level state that an administrator must remove. If the app is below the minimum secure version, Pro requires an update before it can continue.

Question 21

What should I do if something does not work or looks wrong?

Accepted Answer

That kind of issue needs after-sales / developer help: open https://statviewer.toputils.top/, click the "After-sales QQ group" entry in the bottom-right corner to join and report (staff answer there), or submit via the official feedback page. You can attach the last 10 minutes of logs exported from Settings → About → Save logs.

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