...
Sysprep may require some other files and settings. Thanks to
JakeLD 
, here they are:
(read the original topic
here)
Windows Registry Editor Version 5.00
; Change source path to be c\windows instead of cd-rom
; Fix a sysprep bug
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup]
; Set C:\WINDOWS C:\WINDOWS\I386 C:\WINDOWS\SYSTEM32 C:\WINDOWS\SYSTEM32\DRIVERS as installation sources
"Installation Sources"=hex(7):43,00,3a,00,5c,00,57,00,49,00,4e,00,44,00,4f,00,\
57,00,53,00,00,00,43,00,3a,00,5c,00,57,00,49,00,4e,00,44,00,4f,00,57,00,53,\
00,5c,00,49,00,33,00,38,00,36,00,00,00,43,00,3a,00,5c,00,57,00,49,00,4e,00,\
44,00,4f,00,57,00,53,00,5c,00,53,00,59,00,53,00,54,00,45,00,4d,00,33,00,32,\
00,00,00,43,00,3a,00,5c,00,57,00,49,00,4e,00,44,00,4f,00,57,00,53,00,5c,00,\
53,00,59,00,53,00,54,00,45,00,4d,00,33,00,32,00,5c,00,44,00,52,00,49,00,56,\
00,45,00,52,00,53,00,00,00,00,00
"SourcePath"="C:\\WINDOWS"
"ServicePackSourcePath"="C:\\WINDOWS"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
;"RegisteredOrganization"=""
;"RegisteredOwner"="User"
"SystemRoot"="C:\\WINDOWS"
"SourcePath"="C:\\WINDOWS\\i386"
And also copy these files to \sysprep\I386 (don't add out-of-box drivers, the folder is deleted after setup completes)
agentdp2.dll
agentdpv.dll
agt0405.dll
agt0405.hlp
agt0406.dll
agt0406.hlp
agt0407.dll
agt0407.hlp
agt0408.dll
agt0408.hlp
agt0409.dll
agt0409.hlp
agt040b.dll
agt040b.hlp
agt040c.dll
agt040c.hlp
agt040e.dll
agt040e.hlp
agt0410.dll
agt0410.hlp
agt0413.dll
agt0413.hlp
agt0414.dll
agt0414.hlp
agt0415.dll
agt0415.hlp
agt0416.dll
agt0416.hlp
agt0419.dll
agt0419.hlp
agt041d.dll
agt041d.hlp
agt041f.dll
agt041f.hlp
agt0816.dll
agt0816.hlp
agt0c0a.dll
agt0c0a.hlp
agtintl.dll
ctype.nls
c_037.nls
c_10000.nls
c_10006.nls
c_10007.nls
c_10010.nls
c_10017.nls
c_10029.nls
c_10079.nls
c_10081.nls
c_10082.nls
c_1026.nls
c_1250.nls
c_1251.nls
c_1252.nls
c_1253.nls
c_1254.nls
c_1255.nls
c_1256.nls
c_1257.nls
c_1258.nls
c_20127.nls
c_20261.nls
c_20866.nls
c_20905.nls
c_21866.nls
c_28591.nls
c_28592.nls
c_28593.nls
C_28594.NLS
C_28595.NLS
C_28597.NLS
c_28598.nls
c_28599.nls
c_28603.nls
c_28605.nls
c_437.nls
c_500.nls
c_737.nls
c_775.nls
c_850.nls
c_852.nls
c_855.nls
c_857.nls
c_860.nls
c_861.nls
c_863.nls
c_865.nls
c_866.nls
c_869.nls
c_874.nls
c_875.nls
c_932.nls
c_936.nls
c_949.nls
c_950.nls
enum1394.inf
enum1394.sys
ftdisk.sys
geo.nls
isapnp.sys
locale.nls
l_except.nls
l_intl.nls
modern.fon
mouhid.sys
roman.fon
script.fon
sortkey.nls
sorttbls.nls
streamci.dll
unicode.nls
vga.sys
wst_czec.fon
wst_engl.fon
wst_fren.fon
wst_germ.fon
wst_ital.fon
wst_span.fon
wst_swed.fon
Now that you can see the driver locations in the SysprepMassStorage section, you can start resealing your workstation.