This article describes an issue that occurs after you install April 2015 security update for Windows (3045999) in Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2. A hotfix is available to fix this issue. The hotfix has a prerequisite.
Symptoms
Applications that call Windows Management Instrumentation (WMI) APIs directly or call APIs that rely on WMI (such as the ManagementEventWatcher class) don't get the correct process status (regardless of whether the process is running or not).
Cause
This issue occurs because new process creation events aren't triggered by the WMI notification query if security update 3045999 is installed.
Hotfix information
Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that's described in this article. Apply this hotfix only to systems that are experiencing this specific problem.
If the hotfix is available for download, there's a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section doesn't appear, submit a request to Microsoft Customer Service and Support to get the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that don't qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you don't see your language, it's because a hotfix isn't available for that language.
Prerequisites
To apply this hotfix, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1 or Windows Server 2012 R2, and also have April 2015 security update for Windows (3045999) installed.
Registry information
To use the hotfix in this package, you don't have to make any changes to the registry.
Restart requirement
You may have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix doesn't replace a previously released hotfix.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
See the terminology that Microsoft uses to describe software updates.
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 times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.
Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2
Important Windows 8.1 hotfixes and Windows Server 2012 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1/Windows Server 2012 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
Notes
The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
Version Product Milestone Service branch 6.3.960 0.18 xxx Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 RTM GDR The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes aren't listed, are signed with a Microsoft digital signature.
Windows RT 8.1
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Krnlprov.dll | 6.3.9600.18049 | 37,888 | 07-Sep-2015 | 16:02 | Not applicable |
| Krnlprov.mof | Not applicable | 14,840 | 21-Aug-2013 | 23:38 | Not applicable |
x86 Windows 8.1
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Krnlprov.dll | 6.3.9600.18049 | 38,912 | 07-Sep-2015 | 16:16 | x86 |
| Krnlprov.mof | Not applicable | 14,840 | 21-Aug-2013 | 23:46 | Not applicable |
x64 Windows 8.1 and Windows Server 2012 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Krnlprov.dll | 6.3.9600.18049 | 46,592 | 07-Sep-2015 | 16:55 | x64 |
| Krnlprov.mof | Not applicable | 14,840 | 22-Aug-2013 | 06:51 | Not applicable |
Additional file information
Windows RT 8.1
| File property | Value |
|---|---|
| File name | Arm_ac19e7cd12206434820ca098a529194d_31bf3856ad364e35_6.3.9600.18050_none_b5a51401a4097e24.manifest |
| File version | Not applicable |
| File size | 709 |
| Date (UTC) | 09-Sep-2015 |
| Time (UTC) | 03:09 |
| Platform | Not applicable |
| File name | Arm_microsoft-windows-wmi-krnlprov-provider_31bf3856ad364e35_6.3.9600.18050_none_786f36391099245c.manifest |
| File version | Not applicable |
| File size | 7,364 |
| Date (UTC) | 08-Sep-2015 |
| Time (UTC) | 19:08 |
| Platform | Not applicable |
| File name | Update.mum |
| File version | Not applicable |
| File size | 1,786 |
| Date (UTC) | 09-Sep-2015 |
| Time (UTC) | 03:09 |
| Platform | Not applicable |
x86 Windows 8.1
| File property | Value |
|---|---|
| File name | Update.mum |
| File version | Not applicable |
| File size | 1,786 |
| Date (UTC) | 09-Sep-2015 |
| Time (UTC) | 03:09 |
| Platform | Not applicable |
| File name | X86_17accf99a8aa31a82aef00bf2f4759b2_31bf3856ad364e35_6.3.9600.18050_none_17fb8786c0f2c391.manifest |
| File version | Not applicable |
| File size | 709 |
| Date (UTC) | 09-Sep-2015 |
| Time (UTC) | 03:09 |
| Platform | Not applicable |
| File name | X86_microsoft-windows-wmi-krnlprov-provider_31bf3856ad364e35_6.3.9600.18050_none_786cc3e1109c0596.manifest |
| File version | Not applicable |
| File size | 7,364 |
| Date (UTC) | 08-Sep-2015 |
| Time (UTC) | 19:05 |
| Platform | Not applicable |
x64 Windows 8.1 and Windows Server 2012 R2
| File property | Value |
|---|---|
| File name | Amd64_2abba023b6195fd5e67388a360da2cde_31bf3856ad364e35_6.3.9600.18050_none_1fa31256be39baf4.manifest |
| File version | Not applicable |
| File size | 713 |
| Date (UTC) | 09-Sep-2015 |
| Time (UTC) | 03:09 |
| Platform | Not applicable |
| File name | Amd64_microsoft-windows-wmi-krnlprov-provider_31bf3856ad364e35_6.3.9600.18050_none_d48b5f64c8f976cc.manifest |
| File version | Not applicable |
| File size | 7,368 |
| Date (UTC) | 08-Sep-2015 |
| Time (UTC) | 19:19 |
| Platform | Not applicable |
| File name | Update.mum |
| File version | Not applicable |
| File size | 2,239 |
| Date (UTC) | 09-Sep-2015 |
| Time (UTC) | 03:09 |
| Platform | Not applicable |