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If you encounter persistent errors, consider upgrading to Windows 10 (still free via assistive tech upgrade method as of 2026) – .NET 4.5.2 installs there without any prerequisites.
reg query "HKLM\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" /v Release If output shows 0x378758 (hex) or 378758 (decimal), success. | Issue | Fix | |-------|-----| | Error 0x80070643 | Corrupt MSI installer. Run sfc /scannow first. | | Installation hangs at “Applying patches” | Reboot, disable non-Microsoft services via msconfig → Clean boot. | | “This update is not applicable to your system” | You already have a newer version (4.6, 4.7, 4.8). Check Release DWORD. | | Missing KB2919355 error | Manually install the two updates mentioned in section 3. | 7. What If You Need an Even Newer Version? Windows 7 supports up to .NET Framework 4.8 (the final version for Win7). If an app requires 4.5.2 but fails, try installing .NET 4.8 – it is backward compatible with 4.5.2. download net framework 4.5 2 for windows 7
Download .NET 4.8 for Windows 7: https://dotnet.microsoft.com/en-us/download/dotnet-framework/net48 Use the offline installer for .NET 4.5.2 on Windows 7 to avoid dependency on Microsoft’s live endpoints (some legacy update servers are slow or redirected). Keep the installer .exe saved locally for future reinstallations. If you encounter persistent errors, consider upgrading to