Visual Studio won't open a web forms project after update

Hi Hoggard,

I’m sorry to hear you’re experiencing issues opening localhost in Visual Studio. Since I’m not certain which project type or programming language you’re using, please try the following steps:

1. Run the Project Manually

• Open the Terminal in Visual Studio and run the command to start your project.
• If an IP address or localhost URL appears, hold Ctrl and click the link to open it in your browser.

2. If No URL Appears, Try These Troubleshooting Steps

1. Reset IIS Express Configuration
   • Press Win + R, paste this path, and press Enter:

          %USERPROFILE%\Documents\IISExpress\config
     

   • Delete all files in this folder.
2. Reinstall IIS Express
   • Download and install IIS 10 Express from Microsoft.
   • Restart your computer after installation.
3. Repair Visual Studio
   • Open Visual Studio Installer, select your installed version, and click Repair.
   • This will automatically detect and fix any issues.
4. Disable Security Software Temporarily
   • Turn off antivirus, firewall, or proxy settings to ensure they’re not blocking IIS Express.
5. As a Last Resort: Reinstall Windows
   • If the above steps don’t resolve the issue, reinstalling Windows from the latest ISO can ensure a clean environment. You can download and follow the guidance on this page.
   • Important: Back up your data before proceeding.

If these steps resolve your issue, please let me know. Your feedback can help others facing similar problems.