Update information
How to obtain this update
These monthly updates are available on the OEM DVDs.
Prerequisites
You must apply the updates to a Windows 8 OEM disk image or a Windows 8.1 OEM disk image.
Note This update must be applied on a Windows image offline before Windows Defender is started. This update is intended to provide users the newer engines and signatures before first run of Windows Defender. If Windows Defender is already running, it may have already started automatically updating engines and signatures through Windows Update and this update is no longer necessary.
How to apply the update to a Windows image
Use Deployment Image Servicing and Management (DISM) to add packages to a Windows image. To do this, run DISM at a command prompt by using the
/Add-Package option and pointing to the latest Windows Defender baseline engines and signatures .msu package that you want to add to the Windows image, as follows:
dism /image: <Path To Windows Image> /Add-Package /packagepath: <Path To The .msu Update File>
Registry information
To apply the updates, you do not have to make any changes to the registry.
File information
The global 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.
The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are
listed separately in the "Additional file information for Windows RT, Windows 8" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
Monthly update in April 2015
Windows RT, Windows 8 file information
For Windows RT
File name | File version | File size | Date | Time | Platform |
---|
Mpengine.dll | 1.1.11602.0 | 5,974,136 | 23-Apr-2015 | 13:07 | Not applicable |
Mpasbase.vdm | 1.197.0.0 | 10,327,312 | 23-Apr-2015 | 13:07 | Not applicable |
Mpasdlta.vdm | 1.197.52.0 | 26,392 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavbase.vdm | 1.197.0.0 | 18,069,272 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavdlta.vdm | 1.197.52.0 | 57,624 | 23-Apr-2015 | 13:07 | Not applicable |
For all supported x86-based versions of Windows 8
File name | File version | File size | Date | Time | Platform |
---|
Mpengine.dll | 1.1.11602.0 | 9,201,616 | 23-Apr-2015 | 13:07 | x86 |
Mpengine.dll | 1.1.11602.0 | 9,201,616 | 23-Apr-2015 | 13:07 | x86 |
Mpasbase.vdm | 1.197.0.0 | 28,609,816 | 23-Apr-2015 | 13:07 | Not applicable |
Mpasdlta.vdm | 1.197.52.0 | 72,984 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavbase.vdm | 1.197.0.0 | 110,233,368 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavdlta.vdm | 1.197.52.0 | 253,720 | 23-Apr-2015 | 13:07 | Not applicable |
Mpasbase.vdm | 1.197.0.0 | 28,609,816 | 23-Apr-2015 | 13:07 | Not applicable |
Mpasdlta.vdm | 1.197.52.0 | 72,984 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavbase.vdm | 1.197.0.0 | 110,233,368 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavdlta.vdm | 1.197.52.0 | 253,720 | 23-Apr-2015 | 13:07 | Not applicable |
For all supported x64-based versions of Windows 8
File name | File version | File size | Date | Time | Platform |
---|
Mpengine.dll | 1.1.11602.0 | 12,032,440 | 23-Apr-2015 | 13:07 | x64 |
Mpengine.dll | 1.1.11602.0 | 12,032,440 | 23-Apr-2015 | 13:07 | x64 |
Mpasbase.vdm | 1.197.0.0 | 28,609,816 | 23-Apr-2015 | 13:07 | Not applicable |
Mpasdlta.vdm | 1.197.52.0 | 72,984 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavbase.vdm | 1.197.0.0 | 110,233,368 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavdlta.vdm | 1.197.52.0 | 253,720 | 23-Apr-2015 | 13:07 | Not applicable |
Mpasbase.vdm | 1.197.0.0 | 28,609,816 | 23-Apr-2015 | 13:07 | Not applicable |
Mpasdlta.vdm | 1.197.52.0 | 72,984 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavbase.vdm | 1.197.0.0 | 110,233,368 | 23-Apr-2015 | 13:07 | Not applicable |
Mpavdlta.vdm | 1.197.52.0 | 253,720 | 23-Apr-2015 | 13:07 | Not applicable |
Windows RT 8.1, Windows 8.1 file information
For Windows RT 8.1
File name | File version | File size | Date | Time | Platform |
---|
Mpengine.dll | 1.1.11602.0 | 5,974,136 | 23-Apr-2015 | 13:08 | Not applicable |
Mpasbase.vdm | 1.197.0.0 | 10,327,312 | 23-Apr-2015 | 13:08 | Not applicable |
Mpasdlta.vdm | 1.197.52.0 | 26,392 | 23-Apr-2015 | 13:08 | Not applicable |
Mpavbase.vdm | 1.197.0.0 | 18,069,272 | 23-Apr-2015 | 13:08 | Not applicable |
Mpavdlta.vdm | 1.197.52.0 | 57,624 | 23-Apr-2015 | 13:08 | Not applicable |
Gapaengine.dll | 2.1.11502.0 | 780,800 | 31-Mar-2015 | 22:08 | Not applicable |
Nisbase.vdm | 114.0.0.0 | 760,048 | 31-Mar-2015 | 22:08 | Not applicable |
Nisfull.vdm | 114.12.0.0 | 776,464 | 23-Apr-2015 | 13:08 | Not applicable |
For all supported x86-based versions of Windows 8.1
File name | File version | File size | Date | Time | Platform |
---|
Mpengine.dll | 1.1.11602.0 | 9,201,616 | 23-Apr-2015 | 13:08 | x86 |
Mpasbase.vdm | 1.197.0.0 | 28,609,816 | 23-Apr-2015 | 13:08 | Not applicable |
Mpasdlta.vdm | 1.197.52.0 | 72,984 | 23-Apr-2015 | 13:08 | Not applicable |
Mpavbase.vdm | 1.197.0.0 | 110,233,368 | 23-Apr-2015 | 13:08 | Not applicable |
Mpavdlta.vdm | 1.197.52.0 | 253,720 | 23-Apr-2015 | 13:08 | Not applicable |
Gapaengine.dll | 2.1.11502.0 | 908,832 | 31-Mar-2015 | 22:08 | x86 |
Nisbase.vdm | 114.0.0.0 | 760,048 | 31-Mar-2015 | 22:08 | Not applicable |
Nisfull.vdm | 114.12.0.0 | 776,464 | 23-Apr-2015 | 13:08 | Not applicable |
For all supported x64-based versions of Windows 8.1
File name | File version | File size | Date | Time | Platform |
---|
Mpengine.dll | 1.1.11602.0 | 12,032,440 | 23-Apr-2015 | 13:08 | x64 |
Mpasbase.vdm | 1.197.0.0 | 28,609,816 | 23-Apr-2015 | 13:08 | Not applicable |
Mpasdlta.vdm | 1.197.52.0 | 72,984 | 23-Apr-2015 | 13:08 | Not applicable |
Mpavbase.vdm | 1.197.0.0 | 110,233,368 | 23-Apr-2015 | 13:08 | Not applicable |
Mpavdlta.vdm | 1.197.52.0 | 253,720 | 23-Apr-2015 | 13:08 | Not applicable |
Gapaengine.dll | 2.1.11502.0 | 1,187,344 | 31-Mar-2015 | 22:08 | x64 |
Nisbase.vdm | 114.0.0.0 | 760,048 | 31-Mar-2015 | 22:08 | Not applicable |
Nisfull.vdm | 114.12.0.0 | 776,464 | 23-Apr-2015 | 13:08 | Not applicable |