Update .NET Framework 3.5 on Windows 8, Windows Server 2012

Update for the .NET Framework 3.5 on Windows 8, Windows 8.1, Windows Server 2012, and Windows Server 2012 R2

INTRODUCTION

This

update

resolves

an

issue

that

prevents

the

optional

Microsoft

.NET

Framework

3.5

feature

from being enabled after you install security update

2966827

or

2966828

(described in

Microsoft Security Bulletin

MS14-046

) for the Microsoft .NET Framework 3.5.

This

update

applies

to

Windows

8,

Windows

Server

2012,

Windows

8.1,

and

Windows

Server

2012

R2.

Summary

Microsoft

has

released

update

3005628

for

the

.NET

Framework

3.5

on

Windows

8,

Windows

Server

2012, Windows 8.1, and Windows Server 2012 R2.

Individual, small-business, and organizational users should use the Windows

automatic-updating feature to install the fixes from Microsoft Update. To do this,

see

Get security updates automatically

.

?

IT

professionals

should

refer

to

the

information

and

switches

for this update

?

Symptoms

After you install security update

2966827

or

2966828

(described in Microsoft Security

Bulletin

MS14-046

)

for

the

Microsoft

.NET

Framework

3.5

and

then

try

to

enable

the

optional

Microsoft .NET Framework 3.5 feature in Windows Features for the first time, the feature

may not be enabled.

When this problem occurs, you may receive an error message that resembles one of the

following.

Error code

Error messages

The source files could not be downloaded.

Use the

to restore the feature. For more information on specifying a source location,

see /fwlink/?LinkId=243077.

The DISM log file can be found at C:

Windows couldn't complete the requested changes.

0x800F0906

Windows couldn't connect to the Internet to download necessary files. Make sure

that you're connected to the Internet, and click

Installation of one or more roles, role services, or features failed.

The source files could not be found. Try installing the roles, role services,

or features again in a new Add Roles and Features Wizard session, and on the

Confirmation page of the wizard, click

specify a valid location of the source files that are required for the

installation. The location must be accessible by the computer account of the

destination server.

0x800F0906 - CBS_E_DOWNLOAD_FAILURE

The source files could not be found.

Use the

to restore the feature. For more information on specifying a source location,

see /fwlink/?LinkId=243077.

0x800F081F

The DISM log file can be found at C:

0x800F081F - CBS_E_SOURCE_MISSING

Error code: 0x800F081F

Error: 0x800F081F

Cause

Security updates

2966827

and

2966828

(described in Microsoft Security Bulletin

MS14-046

)

for the .NET Framework 3.5 require metadata that is added to the system only when the

Microsoft .NET Framework 3.5 feature is enabled. Updates that apply to the .NET Framework

3.5 are meant to be installed only after the .NET Framework 3.5 feature is installed. This

issue is also described in the following Microsoft Knowledge Base:

3002547

Enabling the Microsoft .NET Framework 3.5 optional Windows feature in Windows 8,

Windows Server 2012, Windows 8.1, or Windows Server 2012 R2 may fail after you install

security update 2966827 or 2966828

Resolution

To resolve this issue, install update

3005628

.

Update

3005628

will

remove

security

update

2966827

or

2966828

from

any

system

that

does

not

have

the

.NET

Framework

3.5

feature

content

installed

and

present

in

Windows

8,

Windows

Server

2012, Windows 8.1, and Windows Server 2012 R2. Going forward, security updates

2966827

and

2966828

will

be

offered

only

to

applicable

systems

that

have

the

.NET

Framework

3.5

feature

enabled.

Customers who have security update

2966828

predeployed to their system by their device

manufacturer or who have the security update predeployed by their system administrator by

using

option of the Deployment Image Servicing

and Management (DISM) tool should install update

3005628

. See the

section for links to the appropriate updates.

Customers

who

receive

and

install

update

3005628

from

Microsoft

Update

channels

do

not

have

to take any additional action. Individual customers or IT professionals who decide to run

update

3005628

manually or within

their managed

environments should refer

to the

information

Download information

The following files are available for download from the Microsoft Download Center.

For all supported x86-based systems

Download the package now.

For all supported x64-based systems

Download the package now.

Customers

who

are

aware

that

the

DISM

and

option

was

used on their system should download and install the following update:

For all supported x86-based systems

Download the package now.

For all supported x64-based systems

Download the package now.

Command-line switches for this update

There

are

no

command

line

switches

that

are

applicable

to

this

update.

The

update

executable

must be run by using elevated administrative credentials.

Restart information

This

update

does

not

require

a

system

restart

after

you

apply

it

unless

files

that

are

being

updated are locked or are being used.

More information

The information in this article applies to the following:

?

The Microsoft .NET Framework 3.5 on Windows 8, Windows Server 2012, Windows 8.1, and

Windows Server 2012 R2.

Security update patch bulletin .NET Framework for MS14-06 KB2966827 KB2966828 KB3002547

KB3005628 enabling .NET Framework 3.5

Properties

Article ID: 3005628 - Last Review: 04/23/2015 08:27:00 - Revision: 2.2

Applies to

?

Microsoft .NET Framework 3.5

Keywords:

?

kbexpertiseinter kbinfo kbsecadvisory kbsecurity kbsecvulnerability kbmsifixme

kbfixme KB3005628

Can’t Install Microsoft .NET Framework 3.5 in Windows 8 and Later

We

know

that

Windows

8

and

later

operating

systems

don't

come

with

Microsoft

.NET

Framework

3.5

but

there

are

many

3rd

party

software

programs

which

require

.NET

Framework

3.5

installed

in

Windows.

So

people

use

online

or

offline

methods

to

install

.NET

Framework

3.5

in

Windows

8 or later as given in following tutorials:

o

How to Install .NET Framework 3.5 Offline in Windows 8 and Later without Internet Connection?

o

Download Microsoft .NET Framework 3.5 Offline Installer for Windows 8 and Later

But there are a few people who have faced

problems while installing .NET Framework 3.5

.

When they try to install

it,

they receive error messages such as the source files

could

not

be found or downloaded, etc. These error messages contain different error codes such as

0x800F081F or 0x800F0906.

To

fix

these

problems,

we

posted

a

troubleshooting

article

which

allows

you

to

install

.NET

Framework 3.5 in Windows 8 and later without receiving any error messages:

o

[Fix] 0x800F0906/81F Errors While Installing .NET Framework 3.5 in Windows 8 and Later

The

above

mentioned

guide

helped

a

lot

of

people

and

fixed

the

error

messages

but

still

there

were a few people who were not able to install .NET Framework 3.5 in Windows 8 and later.

Then an AskVG reader Patrik posted a different solution which worked for those people.

Patrik:

I have three Surface Pro 3 with Windows Pro 8.1 that have the same issue. .NET

Framework

3.5

will

not

install.

I've

tried

both

via

DISM,

Programs

and

Features

and

via

full

install

setup.

I

have

tried

to

uninstall

every

single

Windows

update

on

the

machine

and

then

install

via

DISM,

but

that

didn't

help

either.

I

even

tried

to install

all

three

KB-updates

(KB2966826-8) to see if I can uninstall them to get rid of potential dll-files that could

be interfere with the .Net 3.5 setup. So I then decided to wipe it clean via Windows own

restore system guide. But it didn't even work after I have done a clean Windows install.

Immediately after Windows installed I tried to enable the .NET 3.5 feature, and of course

DISM didn't work either. I have called MS support to get some assistance, but I guess they

will call back in a few days or so. Finally, I have solved the issue after many hours. I

found a setting in the local computer policy.

Today

in

this

article,

we

are

going

to

share

the

solution

given

by

our

reader

Patrik

so

that

all Windows 8 and later users can install .NET Framework 3.5 without any problem.

This

solution

should

work

for

all

devices

whether

its

a

Desktop

PC,

laptop

or

Surface

tablet

running on Windows 8, Windows 8.1 or Windows 10 operating systems.

If you are also facing problems while installing .NET Framework 3.5 in Windows 8 or later,

check out following method to fix the issue:

1.

Type

in

RUN

or

Start

search

box

and

press

Enter.

It'll

open

Group

Policy

Editor

.

2.

Now go to:

Computer Configuration -> Administrative Templates -> System

3.

In right-side pane, look for

Specify settings for optional component installation and

component repair