- Do you have problems installing .NET Framework 3.5 or turning this feature on?
- It is a crucial part of many Windows apps, so learn how to do that from our guide below.
- Dive deep into the best solutions created by our experts to resolve this issue once and for all.
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.NET Framework 3.5 is an essential feature for running many Windows applications, but some users reported that it isn’t turned on in Windows 10 or have some problems installing it.
The .NET Framework is a crucial part of many applications running on Windows platforms. This feature provides the necessary functionality for these apps to run normally.
Logically, before installing these apps, we need to enable .NET Framework on our computer.
Dot NET Framework 3.5 is an essential component of Windows, and if the Dot NET Framework is missing, you might experience specific issues.
Speaking of .NET Framework, users reported the following problems:
- Microsoft Dot NET Framework 3.5 offline installer – To install Dot NET Framework 3.5, you need an active Internet connection, but you can also install this framework using the offline installer.
- NET Framework 3.5 error 0x800f0906, 0x800f0922, 0x800f081f – Sometimes you might not be able to install .NET Framework due to various errors. We already covered common .NET Framework 3.5 errors in one of our older articles, so check it out.
- Dot NET Framework 3.5 The following feature couldn’t be installed, The source files could not be found – Sometimes you won’t be able to install .NET Framework due to these messages. However, you might be able to solve that problem by using one of our solutions.
- .NET Framework 3.5 unable to install – In some cases, you might not be able to install NET Framework at all. Your settings or corrupted files likely cause this, but you can quickly fix that.
What can I do if .NET Framework 3.5 is missing on Windows 10?
1. Install .NET Framework 3.5 as a Windows feature
- Press the Windows + R keys at the same time. Type appwiz.cpl in the Run command box and press Enter.
- In the Programs and Features window, click on the link Turn Windows features on or off.
- Check if the .NET Framework 3.5 (includes .NET 2.0 and 3.0) option is available in it. If yes, then enable it and then click on OK.
- Follow the on-screen instructions, complete the installation and restart the computer if the process requests that from you.
After that, the .NET Framework should start working again without any problems.
You can also get .NET Framework 3.5 from Microsoft.
2. Install .NET Framework 3.5 on-demand
Besides installing .NET Framework 3.5 through the Control Panel, you can also install it on-demand.
If a particular app requires the .NET Framework 3.5, but this feature isn’t enabled on your computer, the installation wizard will display the prompt for installing .NET Framework 3.5 on demand.
To install .NET Framework 3.5, choose the option Install this feature in this prompt, and .NET Framework 3.5 will be automatically installed on your computer.
3. Use the DISM command to install .NET Framework 3.5
- Press Windows key and R at the same time. Type cmd in the Run dialog box and press Enter.
- And enter the following line in the Command Prompt:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:X:sourcessxs
To run this command, you’ll need to replace X with the letter representing the drive with installation media.
After running this command, you should be able to install .NET Framework 3.5 on your PC without any problems.
Remember that you might get a message saying you need administrative privileges to run this command.
You must start Command Prompt as administrator and rerun this command if that happens.
To see how to do that, check Step 1 in Solution 5.
Some users have reported that they get a specific error message after they try to install .NET Framework 3.5 through the Control Panel or on-demand.
To avoid this error, try to install .NET Framework 3.5 with the Command Prompt. Before you can do that, you might need a Windows 10 installation media.
4. Install the missing updates and try again
- Press Windows Key + I to open the Settings App.
- When the Settings App opens, navigate to the Update & Security section.
- Now click on Check for updates button. Windows 10 will now check for available updates and download them in the background.
After downloading and installing the latest updates, you should try to install .NET Framework 3.5 again.
If .NET Framework 3.5 is missing and you can’t install it, you might be able to fix the problem by downloading the latest Windows Updates.
Sometimes bugs can prevent specific components from installing, but you should be able to fix them by updating Windows 10.
If you’re having trouble opening the Setting app, look at this article to solve the issue.
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5. Perform an SFC scan to fix .NET Framework 3.5 missing
- Press Windows Key + X to open the Win + X menu and choose Command Prompt (Admin) or PowerShell (Admin) from the menu.
- When Command Prompt starts, enter sfc /scannow and press Enter.
- SFC scan will now start. Remember that an SFC scan can take about 15 minutes to finish, so don’t interrupt it.
Once the SFC scan is finished, try to install .NET Framework 3.5 again. You might also have to perform a DISM scan if it doesn’t work.
6. Perform a DISM scan
- Open Command Prompt as administrator.
- Now enter DISM /Online /Cleanup-Image /RestoreHealth and press Enter to run it.
- DISM scan will now start. The scan can take more than 15 minutes to complete, so be sure not to interrupt it.
Once you complete the DISM scan, try to install .NET Framework 3.5 again. Users reported that the DISM scan worked for them, but if you still can’t install .NET Framework, repeat the SFC scan and check if that solves the problem.
7. Use the lodctr command
- Open Command Prompt as administrator. We showed you how to open Command Prompt in the previous solution quickly, so be sure to check it out.
- Once the Command Prompt opens, enter lodctr /r, and press Enter to run it.
After the command is executed, the problem should be fixed, and you’ll be able to install .NET Framework 3.5 without any issues.
Many users reported that this solution worked for them, so if you have any problems installing .NET Framework, be sure to try this solution.
8. Change your Group Policy
- Press Windows Key + R and enter gpedit.msc. Now press Enter or click OK. Keep in mind that this tool is available only on Pro versions of Windows 10, but there’s a way to run Group Policy Editor on the Home version of Windows.
- When Group Policy Editor starts, go to Computer Configuration > Administrative Templates > System in the left pane. Then, in the right pane, double click on Specify settings for optional component installation and component repair.
- A new window will now appear. Select Enabled and click on Apply and OK.
- Optional: Check Download repair content and optional features directly from Windows Update instead of Windows Server Update Services.
After making these changes, you need to start Command Prompt as administrator and run gpupdate /force command to apply the changes.
After doing that, you should be able to install the .NET Framework without issues.
9. Check your Action Center
- Press Windows Key + S and enter control panel. Choose Control Panel from the list of results.
- When Control Panel starts, make sure that the Category view is enabled. Now navigate to System and Security section.
- Now click on Review your computer’s status and resolve issues.
- If you see any warnings, be sure to resolve them.
Once all issues are resolved, try to install .NET Framework once again.
If you still experience issues with .NET Framework on Windows 10, we recommend that you check out these detailed guides as they may offer a solution to your problem:
- How to fix standard .NET Framework 3.5 errors in Windows 10
- How to fix corrupted .NET Framework issues
An app on your PC needs the following feature: .NET Framework 3.5
This error occurs whenever your PC can not identify your .NET Framework’s update and installed.
Fortunately, Windows has a built-in tool that allows you to check, download, and install the .NET Framework, so make sure to check out the options that are available.
Clicking the Download and Install this feature will automatically complete the process, and the installation will require you only to accept the process and wait for a few minutes. This applies only if the installer works.
Here are some actions you can take to identify which App is requiring the .NET Framework:
- Click the Start button.
- Search for CMD, and open it with administrator privileges.
- Run the following command by pressing Enter:
Dism /online /enable-feature /featurename:NetFX3 /All /Source:X:sourcessxs /LimitAccess
- Replace the X found in the Source element of the command above with the drive letter you installed Windows 10 from.
- The process will take a few minutes to run and present you with the message: The operation was completed successfully.
One of these steps should solve your problem with .NET Framework 3.5 in Windows 10.
If something doesn’t work for you, or you have some additional questions, please leave your comment in the comments section below.
Frequently Asked Questions
You could always try downloading it from our website, as the links have been tested to work and are 100% safe.
.NET Framework 3.5 can be installed just like any executable. You don’t even need Administrator rights in order to do so, as long as you have this dedicated tool.
If you.Net Framework is blocked on Windows 10, then it may also prevent your PC from detecting it as installed.