Additional information about this security update

For more information about this security update as it relates to Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2, see the following article in the Microsoft Knowledge Base:

4099639 Security Only update for .NET Framework 3.5 SP1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 updates for Windows 8.1, RT 8.1 and Server 2012 R2 (KB 4099639)

How to obtain and install the update

Method 1: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog.
 

Method 2: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then click Action.

  3. Click Import Updates.

  4. WSUS opens a browser window in which you may be prompted to install an ActiveX control. You must install the ActiveX control to continue.

  5. After the control is installed, you see the Microsoft Update Catalog screen. Enter 4099639 into the Search box, and then click Search.

  6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.

  7. After you select all the packages that you need, click View Basket.

  8. To import the packages to your WSUS server, click Import.

  9. After the packages are imported, click Close to return to WSUS.

The updates are now available for installation through WSUS.

Update deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

20180508 Security update deployment information: May 8, 2018

Update removal information

Note We do not recommend that you remove any security update. To remove this update, use the Programs and Features item in Control Panel.

Update 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.

Update replacement information

This update does not replace any previously released update.


File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 8.1 and Windows Server 2012 R2 file information

Note: The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

File information

File hash information

File name

SHA1 hash

SHA256 hash

Windows8.1-KB4095515-x64.msu

FEB4B15CCA90A91BD49B6E96EAA41BEC2F4CDCED

9F14B39EC71CACEC6D366AF7822631718C6C72940A8D56F5416FE9E3080D16E8

Windows8.1-KB4095515-x86.msu

FD16DD31D259B9EDA8ECA677D10CAC08C1E0F1E8

14EC2AA901A25A4F498C483B0FAB9F7C46A40DCC8ECBBDD18D1924165B8F63E1

For all supported x64-based versions

File name

File version

File size

Date

Time

big5.nlp

66,728

08-Nov-2017

15:14

bopomofo.nlp

82,172

08-Nov-2017

15:14

ksc.nlp

116,756

08-Nov-2017

15:14

mscorlib.dll

2.0.50727.8784

4,571,136

28-Mar-2018

13:15

normidna.nlp

59,342

08-Nov-2017

15:14

normnfc.nlp

45,794

08-Nov-2017

15:14

normnfd.nlp

39,284

08-Nov-2017

15:14

normnfkc.nlp

66,384

08-Nov-2017

15:14

normnfkd.nlp

60,294

08-Nov-2017

15:14

prc.nlp

83,748

08-Nov-2017

15:14

prcp.nlp

83,748

08-Nov-2017

15:14

sortkey.nlp

262,148

08-Nov-2017

15:14

sorttbls.nlp

20,320

08-Nov-2017

15:14

xjis.nlp

28,288

08-Nov-2017

15:14

mscordacwks.dll

2.0.50727.8784

1,757,336

28-Mar-2018

13:15

mscorwks.dll

2.0.50727.8784

10,006,680

28-Mar-2018

13:15

sos.dll

2.0.50727.8784

486,024

28-Mar-2018

13:15

system.security.dll

2.0.50727.8784

274,432

28-Mar-2018

13:15

system.security.dll

2.0.50727.8784

274,432

28-Mar-2018

13:15

big5.nlp

66,728

27-Oct-2017

23:27

bopomofo.nlp

82,172

27-Oct-2017

23:27

ksc.nlp

116,756

27-Oct-2017

23:27

mscorlib.dll

2.0.50727.8784

4,554,752

28-Mar-2018

13:15

normidna.nlp

59,342

27-Oct-2017

23:27

normnfc.nlp

45,794

27-Oct-2017

23:27

normnfd.nlp

39,284

27-Oct-2017

23:27

normnfkc.nlp

66,384

27-Oct-2017

23:27

normnfkd.nlp

60,294

27-Oct-2017

23:27

prc.nlp

83,748

27-Oct-2017

23:27

prcp.nlp

83,748

27-Oct-2017

23:27

sortkey.nlp

262,148

27-Oct-2017

23:27

sorttbls.nlp

20,320

27-Oct-2017

23:27

xjis.nlp

28,288

27-Oct-2017

23:27

mscordacwks.dll

2.0.50727.8784

990,360

28-Mar-2018

13:15

mscorwks.dll

2.0.50727.8784

5,946,520

28-Mar-2018

13:15

sos.dll

2.0.50727.8784

389,768

28-Mar-2018

13:15

For all supported x86-based versions

File name

File version

File size

Date

Time

system.security.dll

2.0.50727.8784

274,432

28-Mar-2018

13:15

big5.nlp

66,728

27-Oct-2017

23:27

bopomofo.nlp

82,172

27-Oct-2017

23:27

ksc.nlp

116,756

27-Oct-2017

23:27

mscorlib.dll

2.0.50727.8784

4,554,752

28-Mar-2018

13:15

normidna.nlp

59,342

27-Oct-2017

23:27

normnfc.nlp

45,794

27-Oct-2017

23:27

normnfd.nlp

39,284

27-Oct-2017

23:27

normnfkc.nlp

66,384

27-Oct-2017

23:27

normnfkd.nlp

60,294

27-Oct-2017

23:27

prc.nlp

83,748

27-Oct-2017

23:27

prcp.nlp

83,748

27-Oct-2017

23:27

sortkey.nlp

262,148

27-Oct-2017

23:27

sorttbls.nlp

20,320

27-Oct-2017

23:27

xjis.nlp

28,288

27-Oct-2017

23:27

mscordacwks.dll

2.0.50727.8784

990,360

28-Mar-2018

13:15

mscorwks.dll

2.0.50727.8784

5,946,520

28-Mar-2018

13:15

sos.dll

2.0.50727.8784

389,768

28-Mar-2018

13:15

How to obtain help and support for this security update

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