Microsoft's .NET Framework is a programming platform that includes programming libraries that can be installed or are already included in Windows operating systems. Depending on your needs, your computer must install the .NET Framework program. However, computers running Windows 8 and above, especially Windows 10, have problems installing .NET Framework 3.5.
In this article, WebTech360 will guide you step by step to fix the error of not installing .NET Framework 3.5 on your computer.
Why is .NET Framework 3.5 so important?
Although the latest version, .NET Framework 4.5.2, comes pre-installed in Windows, users will always need an earlier version of the framework to run specific applications that require 3.5 or earlier. Version 3.5 can also be installed alongside version 4 or later. This is why it is so important to install .NET Framework 3.5 on your Windows system so that older applications can function properly.
Fix error of not being able to install .NET Framework 3.5 on Windows
These are the most common errors you will encounter when installing .NET Framework 3.5. Here is an explanation of both error codes:
0x800F081F – The source files could not be found
0x800F0906 – The source files could not be downloadedIf you are connected to the Internet and still experiencing this problem, this is because you have the following Windows updates installed:
These are security updates for .NET Framework 3.5 that must be installed. But because Microsoft applies these updates regardless of whether framework 3.5 is installed or not, they will be installed even if the framework is not installed.
If these updates were installed first and then you try to install the framework, you will get the errors mentioned above. You will need to uninstall the above updates, install .NET Framework 3.5, and finally reinstall the updates.
Detailed instructions are as follows:
Step 1:
You completely exit the program on the computer. Then in the Windows search bar, type the search keyword Services and access the found results.
Step 2:
In the Services interface, find and right-click on Windows update and select Properties .
Step 3:
A new window interface appears. Here, we select the General tab and select the Startup type to Automatic mode, then press Start and OK to finish.
Step 4:
Return to the Windows search bar, type the keyword group and click on the result above. Or use the keyword gpedit.msc and also click on the search result.
Step 5:
At the Local Group Policy Editor interface , we search for the following folder path:
Computer Configuration > Administrative Templates > System .
Step 6:
Double click on System. Then, on the right interface, find Specify settings for optional component installation and component repair . Right-click and select Edit .
Step 7:
Here, check the Enabled box and click OK to save.
Finally, restart your computer and try installing the program again to see if it works.
Good luck!
See also the following articles:
Although very rarely have to leave, but if you want, this article will also be of assistance in case you want to remove the NET Framework software on your computer.
Error HRESULT: 0xc8000222 when installing Net Framework is quite common and can be fixed with some tips below.
Creating a Windows 11 bootable USB on a Mac is definitely more difficult than on a Windows PC, but it's not impossible.
Windows 11 officially launched on October 5, 2021. Unlike previous major Windows 10 upgrades, Microsoft is not encouraging people to upgrade this time.
This article will show you how to disable BitLocker encryption on Windows 11. Keep in mind that disabling BitLocker on Windows 11 can make your device and data less secure, so be careful when making this decision.
When connecting an external monitor to your Windows PC, you may encounter an Input Signal Out of Range error. This error usually occurs if you have a high refresh rate monitor connected to a lower-end graphics device.
If you are wondering how to pin any window to always be on top of other windows (always on top), read this article right away!
This guide will explain what you need to do to detect the apps that use the most power to improve battery life on Windows 11.
Windows lock screen settings can be quite limited, only allowing you to manage the background image and status. If you want more control over the Windows lock screen, you'll have to resort to Windows Registry tricks.
Microsoft debuted most of its more advanced AI features with the Snapdragon X-powered Copilot+ PC, leaving many Intel and AMD-powered Copilot+ PCs out of the picture.
The October 2024 report provides an overview of Windows 11's market share compared to other versions of Windows.
When you leave your laptop, many people just close the lid and walk away. While this is convenient because your laptop is ready to use whenever you need it, this behavior can damage your laptop without you even realizing it.
The Printer in error state message on Windows can appear for many reasons, such as a failed connection, driver issue, or misconfiguration of system services.
Not everyone likes to see recent searches on Windows 11. Here's how to turn off recent searches on Windows 11
You can directly access your Android phone's storage in Windows 11 File Explorer via Microsoft's new Cross Device Experience Host.
Windows is the most targeted operating system by hackers. Therefore, you should strengthen your PC's defenses to stay safe both online and offline. This article will guide you on how to enable or disable Secure Sign-In in Windows 10.
Screensaver - computer screensaver, which is automatically activated when the computer is not used for a certain period of time. Here are 23 beautiful screensavers for Windows.
