This standalone security update has been removed due to an issue affecting a sub-set of devices. It will not be re-offered from Windows Update, Windows Server Update Services (WSUS) or Microsoft Update Catalog. Note Removal of this standalone security update does not affect successful installation or any changes within any other February 11, 2020 security updates, including Latest Cumulative Update (LCU), Monthly Rollup or Security Only update.
Summary
This update makes improvements to the supported Windows OS versions listed in the "Applies to" section. Key changes include the following:
-
Addresses an issue in which a third-party Unified Extensible Firmware Interface (UEFI) boot manager might expose UEFI-enabled computers to a security vulnerability.
To learn more about this security update, see Microsoft Common Vulnerabilities and Exposures.
Known Issues
|
Symptom |
Workaround |
|
You might encounter issues trying to install or after installing KB4502496. |
To help a sub-set of affected devices, this standalone security update has been removed and will not be re-offered from Windows Update, Windows Server Update Services (WSUS) or Microsoft Update Catalog. Note This does not affect any other update, including Latest Cumulative Update (LCU), Monthly Rollup or Security Only update. If this update is installed and you are experiencing issues, you can uninstall this update.
 We are working on an improved version of this update in coordination with our partners and will release it in a future update. |
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How to get this update
Important This standalone security update has been removed due to an issue affecting a sub-set of devices. It will not be re-offered from Windows Update, Windows Server Update Services (WSUS) or Microsoft Update Catalog. Note Removal of this standalone security update does not affect successful installation or any changes within any other February 11, 2020 security updates, including Latest Cumulative Update (LCU), Monthly Rollup or Security Only update. Â
PrerequisitesÂ
There are no prerequisites to apply this update.
Restart informationÂ
Your device does not have to restart when you apply this update. If you have Windows Defender Credential Guard (Virtual Secure Mode) enabled, your device will restart two times.Â
Update replacement informationÂ
This update does not replace any previously released update.
File information
File attributes
Windows 8.1Â and Windows Server 2012 R2
Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
Windows Server 2012
Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
File verification
File hash information
|
File name |
SHA1 hash |
SHA256 hash |
|---|---|---|
|
Windows10.0-KB4502496-x86.msu |
D40E2176A829A5F3D02807AAAC41116FE4B61BE1 |
4B1A412B380CD5AA04570B02ECCE2EC99E5EDF2463D94604A13D280C8D6E8F03 |
|
Windows10.0-KB4502496-x64.msu |
B157E8378A0F3472DC38FBABCF1A32B61CF949F2 |
EC61AD1827B5B9EA3F18E00EE852F84BC7A5A8803BF704BC4DFDD66A9DDDB670 |
|
Windows8.1-KB4502496-arm.msu |
1A6278693EC4963BD06B040018821F0C0E7F11D8 |
F51BA6422765E8FF0673EA1929C2E45746E85C17E9653C6C8EDA53C7C963EBEC |
|
Windows8.1-KB4502496-x64.msu |
6E8A963A02A26AC881C628850388D0656B699D16 |
2682739F4E666272CF85649D86D61D06F248242EE585FD50DB6B52BCCF72C38F |
|
Windows8.1-KB4502496-x86.msu |
605891D308150C0319152A8B3393BF4131C858E6 |
3DFCADCE834201F22D6790581E85BD546602E67F5D72697B8C503ED19EDE65E5 |
|
Windows8-RT-KB4502496-x64.msu |
436398A91F332B9EE3D1061D32AF125C43CC74DB |
9E9FEEE64C7F7A8FB2E4DD3E38F7EF63599C36F4CDA79293CC49282B01BF188B |
Windows 10
For all supported x86-based versions
|
File name |
File version |
File size |
Date |
Time |
|
Dbupdate.bin |
Not applicable |
2 |
17-Sep-2019 |
12:14 |
|
Dbxupdate.bin |
Not applicable |
7,361 |
17-Sep-2019 |
12:14 |
|
Tpmtasks.dll |
10.0.10240.18366 |
37,376 |
29-Sep-2019 |
22:58 |
For all supported x64-based versions
|
File name |
File version |
File size |
Date |
Time |
|
Dbupdate.bin |
Not applicable |
2 |
11-Sep-2019 |
02:36 |
|
Dbxupdate.bin |
Not applicable |
7,361 |
11-Sep-2019 |
02:36 |
|
Tpmtasks.dll |
10.0.10240.18366 |
44,544 |
29-Sep-2019 |
23:02 |
For all supported x86-based versions
|
File name |
File version |
File size |
Date |
Time |
|
Dbupdate.bin |
Not applicable |
2 |
23-Jun-2019 |
22:23 |
|
Dbxupdate.bin |
Not applicable |
7,361 |
10-Sep-2019 |
00:29 |
|
Tpmtasks.dll |
6.3.9600.19501 |
147,968 |
25-Sep-2019 |
06:09 |
For all supported x64-based versions
|
File name |
File version |
File size |
Date |
Time |
|
Dbupdate.bin |
Not applicable |
2 |
25-Sep-2019 |
04:21 |
|
Dbxupdate.bin |
Not applicable |
7,361 |
25-Sep-2019 |
04:21 |
|
Tpmtasks.dll |
6.3.9600.19501 |
176,128 |
25-Sep-2019 |
06:30 |
For all supported x64-based versions
|
File name |
File version |
File size |
Date |
Time |
|
Dbupdate.bin |
Not applicable |
2 |
20-Jun-2019 |
00:06 |
|
Dbxupdate.bin |
Not applicable |
7,361 |
10-Sep-2019 |
00:07 |
|
Tpmtasks.dll |
6.2.9200.22884 |
95,232 |
25-Sep-2019 |
04:30 |
References
Learn about the terminology that Microsoft uses to describe software updates.
