.Net Framework 3.5 on Windows 10 unable to load

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After a recent Windows 10 auto-update, a user is unable to send emails via Windows Live Mail and encounters an error related to .Net Framework 3.5, specifically error code 0x8007045D, indicating an I/O error during installation attempts. Suggestions for resolving the issue include ensuring a stable internet connection, as some users have found that WiFi can lead to download failures. Recommendations also include uninstalling and reinstalling both Windows Live Mail and .Net Framework 3.5, with caution advised regarding potential data loss in Windows Mail. Backup options for emails are suggested before proceeding with uninstallation. Additional resources for installation steps are provided in the discussion.
jackmell
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Hi,
A few days ago, my Windows 10 went through a long auto update and now when I run Windows Live mail, I cannot send an e-mail and I receive a message:

An app on your PC needs the following Windows feature:
.Net Framework 3.5

and then it instructs me to load it. But when I attempt to load it, the progress bar stalls mid-way and after about 10 minutes, I receive the message:

The Following feature couldn't be installed:
.Net Framework 3.5
The request could not be performed because of an I/O error.
Error code:
0x8007045D

So I was wondering if someone here was familiar with the problem and could help me.

Thanks for reading,
Jack
 
Last edited:
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jackmell said:
Hi,
A few days ago, my Windows 10 went through a long auto update and now when I run Windows Live mail, I cannot send an e-mail and I receive a message:

An app on your PC needs the following Windows feature:
.Net Framework 3.5

and then it instructs me to load it. But when I attempt to load it, the progress bar stalls mid-way and after about 10 minutes, I receive the message:

The Following feature couldn't be installed:
.Net Framework 3.5
The request could not be performed because of an I/O error.
Error code:
0x8007045D

So I was wondering if someone here was familiar with the problem and could help me.

Thanks for reading,
Jack
Is your computer connected via WiFi? I have found that almost always if I try to do the periodic Windows updates via my WiFi connection, the download fails, so I break out my ethernet cable and connect directly to my router. (I will be installing a hard-wire connection between the computer and router real soon now...)

The other thing that comes to mind is that .Net Framework 3.5 is fairly old, but is OK with Win 7, Win 8, Win 8.1, and Win 10, unless you're running Visual Studio later than VS 2008.

Some info -- https://en.wikipedia.org/wiki/.NET_Framework
 
Mark44 said:
Is your computer connected via WiFi? I have found that almost always if I try to do the periodic Windows updates via my WiFi connection, the download fails, so I break out my ethernet cable and connect directly to my router. (I will be installing a hard-wire connection between the computer and router real soon now...)

The other thing that comes to mind is that .Net Framework 3.5 is fairly old, but is OK with Win 7, Win 8, Win 8.1, and Win 10, unless you're running Visual Studio later than VS 2008.

Some info -- https://en.wikipedia.org/wiki/.NET_Framework

Thanks Mark. No. I have an Ethernet link. The only problem I'm encountering is with my e-mail. Windows Live Mail is not allowing me to send e-mails. When I attempt to send an e-mail, I get "a problem occurred while trying to open this message."
 
There are quite a few pages on the internet about your particular error code. Possibly one of them will be helpful.
 
Try uninstalling and reinstalling the Windows Mail application on your system. Steps with screenshots in the link below.
http://www.intowindows.com/how-to-reinstall-the-mail-app-in-windows-10/

While you're at it, also reinstall the .net framework, the 2nd post has the steps you need to follow to install dotnet 3.5 on windows 10
https://answers.microsoft.com/en-us...0/450b3ba6-4d19-45ae-840e-78519f36d7a4?auth=1

Uninstall Windows mail, then uninstall .net3.5, then reboot. Then reinstall dotnet 3.5, then reinstall windows mail and then try again.

P.S. Uninstalling windows mail will probably delete all your email. If you have email you cannot afford to lose, then google "backup windows mail 10" and see what comes up.
 
I am having a hell of a time finding a good all-in-one inkjet printer. I must have gone through 5 Canon, 2 HP, one Brother, one Epson and two 4 X 6 photo printers in the last 7 yrs. all have all sort of problems. I don't even know where to start anymore. my price range is $180-$400, not exactly the cheapest ones. Mainly it's for my wife which is not exactly good in tech. most of the problem is the printers kept changing the way it operate. Must be from auto update. I cannot turn off the...

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