Hi,
When we try to install Katalon Studio by running the KatalonSetup.exe file as an Administrator, a setup window appears with a downloading progress bar that keeps moving from left to right indefinitely, but the installation never progresses.
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can you please whitelist Katalon domain! just use : *.katalon.com and it will whitelist all domains. then check again
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Download the full offline ZIP installer from https://github.com/katalon-studio/katalon-studio/releases (latest: 10.4.x Windows 64-bit). Extract to C:\Users\<username>\Katalon_Studio_Windows_64-x.x.x (avoid Program Files initially). Launch katalon.exe without admin rights.
Fix Online Installer
- Proxy: Configure system proxy or temp disable. Whitelist
downloads.katalon.com,github.com,*.katalon.com(ports 443, 80). - Admin/UAC: Run installer as standard user first; elevate only for extraction to protected dirs. Disable real-time antivirus scanning during install
this usually happens when the installer is run as administrator
try running KatalonSetup.exe normally (no admin) and it should continue past the loading bar
if you’re on a restricted network, antivirus or proxy can also block the download
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