Nog said:
What files are in the $hf_mig$ directory? Are these hotfixes?
The $hf_mig$ should *NOT* be removed.
<snip from the following KB Article>
When a security update, critical update, update, update rollup,
driver, or feature pack installs GDR version files, the hotfix files
are also copied to the %windir%\$hf_mig$ folder. This supports
migration to the appropriate files if you later install a hotfix or
service pack that includes earlier versions of these files. For
example, consider the following scenario:
1. You apply a security update that installs a GDR version of File.dll
with a version number of 5.2.3790.1000 and copies a hotfix version of
File.dll with a version number of 5.2.3790.1000 to the
%windir%\$hf_mig$ folder.
2. You apply a hotfix that includes a hotfix version of File.dll with
a version number of 5.2.3790.0000.
In this scenario the hotfix installation in step 2 installs the hotfix
version of File.dll (version number 5.2.3790.1000) from the
%windir%\$hf_mig$ folder instead of the hotfix version of File.dll
(version number 5.2.3790.0000) from the hotfix package.
Description of the contents of WinXP SP2 and Windows Server 2003
software update packages
http://support.microsoft.com/default.aspx?scid=kb;en-us;824994
What files are in the $NtUnistallKB867282$?
Previously posted by Doug Knox MS-MVP:
The $NTUninstallKBxxxxxx$ or $NTUninstallQxxxxxx$ folders are backups
of
system files that were replaced when you installed various hotfixes.
If
your system is stable, and you don't need to remove the hotfixes,
these
folders can be removed. For an automated utility to clean up these
folders
and the associated Add/Remove Programs entries, see
www.dougknox.com,
Win XP
Utilities, Remove Hotfix Backup Files.
The $NtServicePackUninstall$ folder contains the backup copies of
system
files that were replaced when you installed SP1. These are only
needed if
you decide to remove SP1 for some reason.
The ServicePackfiles folder is a backup copy of the files that WERE
installed when you installed SP1. These files are used if the system
detects (System File Protection) that a system file has been replaced
by an
incorrect version, or deleted. If you remove this folder, and the
system
needs to replace a corrupt, replaced or deleted file, it won't be able
to
find its backup copy. This folder serves the same purpose as the
Windows\System32\dllcache folder.
