TeamViewer frequently asked questions

Yes, when you download a verified build and check the SHA256 hash. Sessions use AES 256-bit encryption. The risk is social: scammers ask victims to install TeamViewer and hand over control. Never grant access to strangers. TeamViewer GmbH advises ending any session you did not initiate.

Personal, non-commercial use is free on Windows. Supporting customers, managing work devices, or running a business on the free tier violates the license. Commercial plans are sold by TeamViewer GmbH based on team size and features.

Yes. Build 15.79.4.0 lists Windows 11 as a supported platform alongside Windows 10. Download the latest EXE from our download page.

Remote control tools allow external access, which heuristic scanners classify as potentially unwanted. Verify the file hash. If it matches the published SHA256 for 15.79.4.0, the detection is likely a false positive. See our antivirus guide.

Share your ID and password from the Allow remote control panel, or send a session link. The helper enters your ID under Control remote computer, picks Remote control or File transfer, and clicks Connect. Full steps are in our session guide.

Yes. TeamViewer clients exist for macOS, Linux, Android, iOS, and iPadOS. Both devices need the app installed and updated. Cross-platform sessions are a core feature since early versions.

15.79.4.0, released June 25, 2026, file size 80.1 MB. Alternate mirrors may still list 15.78.4 until caches update. Always prefer the newest build for security patches.

Free license limits or commercial-use detection can interrupt long sessions. Users helping family for free should confirm non-commercial install settings. Paid IT support needs a commercial license. See timeout guide.

No. TeamViewer is proprietary software published by TeamViewer GmbH. You cannot audit source code. Security relies on encryption standards, third-party audits, and published Trust Center documentation. Details on trust page.

Yes. Choose File transfer when connecting, or use the Files and Extras tab during an active remote control session. Large transfers depend on network speed on both ends.

TeamViewer uses outbound HTTPS and proprietary relay ports. Corporate firewalls blocking unknown UDP or TCP traffic may prevent connections. Allow TeamViewer through Windows Defender Firewall when prompted during install, or configure rules manually for teamviewer.exe.

Open Windows Settings → Apps → Installed apps, find TeamViewer, and uninstall. For Host or unattended installs, also remove the service from startup and check for leftover scheduled tasks if you no longer need remote access to that PC.

2FA adds a second verification step when signing into your TeamViewer account. Enable it for any account tied to unattended access or a device list. It reduces risk if someone steals your account password.

Black screens often mean the remote monitor is locked, the session is on a login screen, or graphics drivers block capture. Ask the user to wake the display and log in. Try switching monitors from the View toolbar on dual-screen setups. Update GPU drivers on the host.

No. This is an independent download and verification resource. TeamViewer GmbH owns the TeamViewer trademark and official distribution channels. We are not affiliated with TeamViewer GmbH. Always verify installer hashes regardless of source.