TuneBit needs one free Microsoft update to run on older versions of Windows. Follow these easy steps — it only takes a few minutes.
Not sure which version of Windows you have? Press the Windows key + R, type winver, and press Enter. If it says Windows 8 or Windows 8.1, you're in the right place. If it says Windows 10 or 11, you don't need this guide — just download TuneBit and run it.
Click the green button below to go to Microsoft's official download page for .NET Framework 4.8. The page opens in a new tab.
On Microsoft's page, find the box labeled “Runtime” on the right and click “Download .NET Framework 4.8 Runtime”. (Don't pick “Developer Pack” — that's for programmers.) The file is named ndp48-x86-x64-allos-enu.exe and is about 110 MB.
If the download page is hard to navigate, use Microsoft's direct support article instead:
support.microsoft.com — .NET Framework 4.8 offline installer
This is a safe, official download directly from Microsoft. It's free and takes about 5–10 minutes to install.
Run the installer you just downloaded. Click ‘Accept’ on the license agreement, then click ‘Install’. Your PC may need to restart when it's done.
That's it! Go to our download page and get TuneBit. It will work just like it does on Windows 10 and 11.
Windows 10 and 11 come with .NET Framework 4.8 built in, but Windows 8 and 8.1 were released before it existed. It's like a software update that lets your PC run newer programs.
Yes — it's made by Microsoft and is part of Windows itself on newer versions. Hundreds of millions of PCs have it installed.
No. .NET Framework runs quietly in the background and uses almost no resources. You won't notice any difference.
TuneBit is designed for Windows 8 and newer. Windows 7 reached end of life in January 2020 and is no longer supported by Microsoft. We recommend upgrading to Windows 10 or 11 for the best experience and security.