8
Enhancing the performance of small writes
Performance degradation can occur on a Windows 7 or WinPE platform that performs many small
writes to an Advanced Format drive. For example, using the ImageX command-line tool to apply a
Windows image (.
wim
file) to an Advanced Format drive would take significantly longer than
applying the same image to a traditional hard drive.
This issue has been addressed in Microsoft Knowledge Base article
982018
. The typical user should
apply the associated hotfix as needed; IT professionals can follow the procedure described below.
Important
The following procedure is intended for the IT professional.
Perform the following steps apply the hotfix:
1.
Download the Windows PE hotfix to your c: drive from the Microsoft Support site at
http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=982018&kbln=en-us
.
2.
Unzip the download file by double-clicking on it.
3.
The
Windows6.1-KB982018-x86.MSU
file should appear in your c: drive. Expand this file:
a.
Launch the command prompt with Administrator rights.
b.
At the prompt, enter the following:
expand.exe c:\Windows6.1-KB982018-x86.MSU –f:*.* c:\
4.
Select
Start
All Programs
Windows OPK or Windows AIK
.
5.
Right-click
Deployment Tools Command Prompt
and then select
Run as administrator
.
6.
At the prompt, expand the Windows PE image by mounting
boot.wim
to be updated into a
location by entering the following:
imagex.exe /mountrw c:\winpe_x86\ISO\sources\boot.wim 1
c:\winpe_x86\mount
7.
Create a scratch directory:
mkdir c:\winpe_x86\sandbox
8.
Apply the hotfix to your boot.wim image:
Dism.exe /image=c:\winpe_x86\mount /ScratchDir=c:\winpe_x86\sandbox
/Apply-Unattend=c:\Windows6.1-KB982018-x86.xml
9.
Commit the Windows PE image by un-mounting boot.wim to be updated into a location by
entering the following:
imagex.exe /unmount /commit c:\winpe_x86\mount