I’m having some trouble with installing .NET Framework 4.5 on my Windows 7 64-bit machine. I keep getting errors during the installation process, and it’s becoming quite frustrating. I’ve tried running Windows Update to ensure everything is up to date, but I still can’t seem to get past this issue. Has anyone else experienced this, and are there any solutions that might help me resolve it? Any advice or troubleshooting tips would be appreciated!

5 days later

I’ve seen this issue before. In my experience, using the official .NET Framework Cleanup Tool to remove any previous failed installations, then temporarily disabling antivirus, and re-running the installer helped clear up corruption. Also, consider running “sfc /scannow” in an elevated command prompt to make sure no system file issues are interfering. Hope this adds another angle to try!

I’ve run into some similar issues too. In my case, the .NET log files gave hints about missing dependencies. Have you tried using SetupDiag to pinpoint the installer issue further? That tool helped me narrow down the problem on a couple of occasions.

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