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I clicked both the msi and the exe and nothing happens - cc-switch

Quick fix

Launch the installer as administrator from PowerShell. If it still fails, uninstall the old version first, or use the portable build.

Symptom

Section titled “Symptom”
Error output
我无法在我的win10安装这款软件，msi程序和exe程序我都点了但是没有反应
English translation

I cannot install this software on my win10 — I clicked both the msi and the exe and nothing happens

Cause

Section titled “Cause”

Installing cc-switch on Windows, some users get no window and no response at all after double-clicking the MSI or EXE; others hit an install permission error upgrading from v3.6.1 to v3.6.2, especially with the install directory on the D drive and without running as administrator. Comments also mention error code 2503, which usually means Windows Installer cannot use the C:\Windows\Temp directory, so the installer fails silently.

These do not necessarily share one root cause: tightened ACLs on the system Temp directory, leftovers from an old version, D drive directory permissions, and company policy blocking administrator runs can all trigger it. The feedback offers different answers: some users succeeded after uninstalling the old version, others had to launch with PowerShell Start-Process -Verb RunAs, and maintainers suggest the portable build.

Fix

Section titled “Fix”

  1. Force the installer to launch as administrator from PowerShell first: `powershell -Command "Start-Process '<full installer path>' -Verb RunAs"` (drag the installer into the window to fill the path in).

  2. If nothing still happens, right-click the .msi or .exe and choose "Run as administrator".

  3. If you installed an older version before, uninstall it completely first — especially if it was on the D drive — then install.

  4. If you get `The error code is 2503`, repair C:\Windows\Temp under Properties → Security → Advanced: add Everyone with Full control, tick "Replace all child object permission entries with inheritable permission entries from this object", apply, and retry.

  5. If Windows 11 still will not install it, download the `portable` build from the release page and unpack it.

Affected Versions

Section titled “Affected Versions”
Toolcc-switch
Version3.6.1 - 3.6.2（受影响范围；另有未注明版本报告）
PlatformsWindows

Source Issues

Section titled “Source Issues”

This page is distilled from 4 real issues

FAQ

Section titled “FAQ”
Double-clicking both the msi and the exe does nothing. What now?
Force administrator launch with `powershell -Command "Start-Process '<full installer path>' -Verb RunAs"`. If that still fails, use the portable build.
Installing on the D drive says permissions are insufficient. What now?
Uninstall the old version completely first, then install, right-clicking the installer and choosing Run as administrator.
Is error code 2503 a problem with the installer?
2503 usually means Windows Installer cannot use C:\Windows\Temp. Repair that directory's ACL (grant Everyone full control) and install again.
Section titled “Related problems”
AnyRouter 429 error in Claude CodeAdd "model": "opus[1m]" to the provider JSON and restart Claude Code. If 429 persists, upstream rate limiting is likely; switch networks or use haiku.1 issues mergedcc-switch login and auth config cannot be entered or deletedUpgrade to v3.17.0 or newer: the Google OAuth misdetection and the legacy-provider gating that hid the API key field are both fixed.4 issues mergednot installed or not executableUpgrade CC Switch to v3.16.2+, or set the CLI install directory by hand in settings, and clear noise printed by your shell at startup.4 issues merged

This is an unofficial community wiki with no affiliation to the cc-switch authors or the project itself. Its content is compiled from the project's public GitHub issues. This site distributes no software.