Windows shows a warning
Verify the file source and publisher; do not disable Defender for the whole system.
Get the official Windows installer directly from MosVPN, complete setup and verify the route. The current build is intended for 64-bit Windows 10 and 11.
Windows 10/11 · 64-bit
Official MosVPN installer for 64-bit Windows 10 and 11.
Download the official app, sign in, and approve the system VPN request.
Save the official mosvpn.exe installer.
Open the file, install MosVPN and sign in.
Approve the VPN request and compare your public IP.
Verify the source network first, the MosVPN tunnel second, and the service you need last.
Verify the file source and publisher; do not disable Defender for the whole system.
Use an appropriate administrator account or ask the computer owner.
Check the connection without VPN, close another VPN, and compare the public IP.
Open the item that matches the message or behavior on your device; avoid changing several settings at once.
Confirm that the file came from the download button on mosvpn.com and review any publisher or reputation message Windows displays. Do not disable Microsoft Defender or SmartScreen across the entire system to run an unrelated copy.
Keep the installer only if you obtained it from the official source. If the browser renamed the file or the download was interrupted, remove that copy and download it again from this page.
Disconnect MosVPN and verify that the base connection works. Close other VPN clients, set Windows date and time automatically and reconnect. Compare the public IP instead of relying only on the client status.
If the problem continues, test the same PC on another network and record the Windows version, connection type, exact time and error text. Do not send account passwords, one-time codes or full logs containing access tokens.
The current installer is intended for 64-bit Windows 10 and Windows 11.
Use the download button on this page to get /downloads/mosvpn.exe directly from the MosVPN website.
No. Verify the source and read the specific warning. Do not disable system-wide protection for an unknown or forwarded file.
Close another VPN, confirm the system request was approved and reconnect. Then refresh the IP check page without a cached proxy or browser extension interfering.
Checked against official platform documentation
Get the official installer for 64-bit Windows 10 and 11, then verify the connection.