NET Downloads. Cross platform. NET implementation. The smallest download to build. NET apps, using command line tools and any editor. Download. NET Core 2. Home of the Microsoft ASP. NET development community. Download Visual Studio, post to the forums, read ASP. NET blogs and learn about ASP. NET. Fix Cant Install Microsoft. NET Framework 3. 5 in Windows 8 and Later We know that Windows 8 and later operating systems dont come with Microsoft. NET. Do i need Microsoft. net framework 1. 1 and 2. 0 service pack 1 and 3. 0 service pack 1 on my desk top computer I dont develop new software. Please enable cookies and refresh the page. Microsoft NET Framework 3 5 SP1 Contains many new features building incrementally upon. NET Framework 2. 0 and 3. 0. Note. If you do not install Framework v1. 1 SP1, you may run into Data Execution Prevention errors with messages like IIS Worker Process has stopped working. Windows 8 brought the latest version of. NET Framework. With windows 8, you get. NET Framework 4. 5 which is an upgrade to to its predecessor 4. 0 version.