Getting "File Operation error" while customizing OS installation. Below is the error i am getting in xxxx.all file : 20160215 10:27:31 Error: handleUnattend(W): X:\work\unattend-subst.tcl failed on substitution in unattend.xml: namespace is urn:schemas-microsoft-com:unattend Unexpected tokens (beyond end)! for 'unsettings[@pass='oobeSystem']uncomponent[@name='Microsoft-Windows-Shell-Setup']unAutoLogonunDomain' Parsed symbols: 0 WCARDNAME 0 0.000 9 unsettings 1 LBRACKET 0 0.000 10 2 ATTRIBUTE 0 0.000 15 pass 3 EQUAL 0 0.000 16 4 LITERAL 0 0.000 28 oobeSystem 5 RBRACKET 0 0.000 29 --> 6 WCARDNAME 0 0.000 40 uncomponent 7 LBRACKET 0 0.000 41 8 ATTRIBUTE 0 0.000 46 name 9 EQUAL 0 0.000 47 10 LITERAL 0 0.000 78 Microsoft-Windows-Shell-Setup 11 RBRACKET 0 0.000 79 12 WCARDNAME 0 0.000 98 unAutoLogonunDomain while executing "$root selectNodes $searchpath" ("foreach" body line 20) invoked from within "foreach subdata [split $substitutedata \n] { if {$::debug} {puts "subdata $subdata"} if {[string length $subdata] == 0} { continue } set goodst..." (file "X:\work\unattend-subst.tcl" line 567) invoked from within "source {X:\work\unattend-subst.tcl}" 20160215 10:27:31 Error: File operation error.