If you've downloaded the latest Lansweeper installer from our download page and the executable won't open when launched, the file could be incomplete or blocked by Windows or anti-virus software.
To successfully open the installer, try the following solutions one by one and verify whether the issue has been resolved:
- Re-download LansweeperSetup.exe from our download page and make sure the file size listed in the installer properties matches the one listed on our download page.
- Right-click LansweeperSetup.exe, select Properties, then the General tab and choose Unblock, if available. Afterwards, hit OK. Windows itself sometimes blocks files originating from the Internet, requiring you to unblock them.
- Temporarily disable anti-virus software installed on your machine or whitelist LansweeperSetup.exe within the anti-virus software. Anti-virus software sometimes incorrectly identifies executables as threats and blocks them.If it turns out your anti-virus software was blocking the Lansweeper installer, please let the Lansweeper support team know at firstname.lastname@example.org so we can report the false positive to the vendor.