This article also applies to the following:

  • Microsoft .NET Framework 3.5

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:

4345681 Security Only updates for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2 for Windows 8.1, RT 8.1 and Server 2012 R2 (KB 4345681)

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 ActiveX control is installed, you see the Microsoft Update Catalog screen. Type 4345681 in 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 require, 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:

20180814 Security update deployment information: August 14, 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 replaces updates 3142026 and 3142030.

File information

File hash

File name

SHA1 hash

SHA256 hash

Windows8.1-KB4344178-x64.msu

5242D857DE04426465D8AC4DCCB030A42B896AA3

AFFE288BDBC8A0CEBF5D748238474E44DCF9E0C05EE51FCAFF63212E87962C0C

Windows8.1-KB4344178-x86.msu

8B8A0AF5ECB33BBA9299586A8FB46080EE28082A

EE21B2FF73F0154532CB1253C31DAB1133FE041826677B20686BED661ED92987


File attributes

The English (United States) version of this 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.

For all supported x86-based systems

File name

File version

File size

Date

Time

system.dll

2.0.50727.8791

3,207,168

11-Jul-2018

13:11

big5.nlp

66,728

07-Nov-2017

17:46

bopomofo.nlp

82,172

07-Nov-2017

17:46

ksc.nlp

116,756

07-Nov-2017

17:46

mscorlib.dll

2.0.50727.8793

4,554,752

24-Jul-2018

13:10

normidna.nlp

59,342

07-Nov-2017

17:46

normnfc.nlp

45,794

07-Nov-2017

17:46

normnfd.nlp

39,284

07-Nov-2017

17:46

normnfkc.nlp

66,384

07-Nov-2017

17:46

normnfkd.nlp

60,294

07-Nov-2017

17:46

prc.nlp

83,748

07-Nov-2017

17:46

prcp.nlp

83,748

07-Nov-2017

17:46

sortkey.nlp

262,148

07-Nov-2017

17:46

sorttbls.nlp

20,320

07-Nov-2017

17:46

xjis.nlp

28,288

07-Nov-2017

17:46

mscordacwks.dll

2.0.50727.8793

991,808

24-Jul-2018

13:10

mscorsvc.dll

2.0.50727.8793

231,992

24-Jul-2018

13:10

mscorwks.dll

2.0.50727.8793

5,948,472

24-Jul-2018

13:10

sos.dll

2.0.50727.8793

391,216

24-Jul-2018

13:10

For all supported x64-based systems

File name

File version

File size

Date

Time

big5.nlp

66,728

26-Oct-2017

16:05

bopomofo.nlp

82,172

26-Oct-2017

16:05

ksc.nlp

116,756

26-Oct-2017

16:05

mscorlib.dll

2.0.50727.8793

4,571,136

24-Jul-2018

13:11

normidna.nlp

59,342

26-Oct-2017

16:05

normnfc.nlp

45,794

26-Oct-2017

16:05

normnfd.nlp

39,284

26-Oct-2017

16:05

normnfkc.nlp

66,384

26-Oct-2017

16:05

normnfkd.nlp

60,294

26-Oct-2017

16:05

prc.nlp

83,748

26-Oct-2017

16:05

prcp.nlp

83,748

26-Oct-2017

16:05

sortkey.nlp

262,148

26-Oct-2017

16:05

sorttbls.nlp

20,320

26-Oct-2017

16:05

xjis.nlp

28,288

26-Oct-2017

16:05

mscordacwks.dll

2.0.50727.8793

1,758,784

24-Jul-2018

13:11

mscorsvc.dll

2.0.50727.8793

495,232

24-Jul-2018

13:11

mscorwks.dll

2.0.50727.8793

10,008,632

24-Jul-2018

13:11

sos.dll

2.0.50727.8793

486,008

24-Jul-2018

13:11

system.dll

2.0.50727.8791

3,207,168

11-Jul-2018

13:12

system.dll

2.0.50727.8791

3,207,168

11-Jul-2018

13:11

big5.nlp

66,728

07-Nov-2017

17:46

bopomofo.nlp

82,172

07-Nov-2017

17:46

ksc.nlp

116,756

07-Nov-2017

17:46

mscorlib.dll

2.0.50727.8793

4,554,752

24-Jul-2018

13:10

normidna.nlp

59,342

07-Nov-2017

17:46

normnfc.nlp

45,794

07-Nov-2017

17:46

normnfd.nlp

39,284

07-Nov-2017

17:46

normnfkc.nlp

66,384

07-Nov-2017

17:46

normnfkd.nlp

60,294

07-Nov-2017

17:46

prc.nlp

83,748

07-Nov-2017

17:46

prcp.nlp

83,748

07-Nov-2017

17:46

sortkey.nlp

262,148

07-Nov-2017

17:46

sorttbls.nlp

20,320

07-Nov-2017

17:46

xjis.nlp

28,288

07-Nov-2017

17:46

mscordacwks.dll

2.0.50727.8793

991,808

24-Jul-2018

13:10

mscorsvc.dll

2.0.50727.8793

231,992

24-Jul-2018

13:10

mscorwks.dll

2.0.50727.8793

5,948,472

24-Jul-2018

13:10

sos.dll

2.0.50727.8793

391,216

24-Jul-2018

13:10

How to obtain help and support for this security update

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