diff --git a/reactos/boot/bootdata/hivecls_arm.inf b/reactos/boot/bootdata/hivecls_arm.inf
index 8167b2d011f..e1ae338347a 100644
--- a/reactos/boot/bootdata/hivecls_arm.inf
+++ b/reactos/boot/bootdata/hivecls_arm.inf
@@ -211,9 +211,9 @@ HKCR,"xmlfile\shell\open\command","",0x00020000,"%SystemRoot%\system32\notepad.e
 ; MSI files
 HKCR,".msi","",0x00000000,"MSI.Package"
 HKCR,"Msi.Package\DefaultIcon","",0x00000000,"msiexec.exe"
-HKCR,"Msi.Package\shell\Open\command","",0x00020000,"%SystemRoot%\system32\msiexec /i %1"
-HKCR,"Msi.Package\shell\Repair\command","",0x00020000,"%SystemRoot%\system32\msiexec /f %1"
-HKCR,"Msi.Package\shell\Uninstall\command","",0x00020000,"%SystemRoot%\system32\msiexec /x %1"
+HKCR,"Msi.Package\shell\Open\command","",0x00020000,"%SystemRoot%\system32\msiexec /i ""%1"""
+HKCR,"Msi.Package\shell\Repair\command","",0x00020000,"%SystemRoot%\system32\msiexec /f ""%1"""
+HKCR,"Msi.Package\shell\Uninstall\command","",0x00020000,"%SystemRoot%\system32\msiexec /x ""%1"""
 
 HKCR,".pif","",0x00000000,"piffile"
 
diff --git a/reactos/boot/bootdata/hivecls_i386.inf b/reactos/boot/bootdata/hivecls_i386.inf
index 8167b2d011f..e1ae338347a 100644
--- a/reactos/boot/bootdata/hivecls_i386.inf
+++ b/reactos/boot/bootdata/hivecls_i386.inf
@@ -211,9 +211,9 @@ HKCR,"xmlfile\shell\open\command","",0x00020000,"%SystemRoot%\system32\notepad.e
 ; MSI files
 HKCR,".msi","",0x00000000,"MSI.Package"
 HKCR,"Msi.Package\DefaultIcon","",0x00000000,"msiexec.exe"
-HKCR,"Msi.Package\shell\Open\command","",0x00020000,"%SystemRoot%\system32\msiexec /i %1"
-HKCR,"Msi.Package\shell\Repair\command","",0x00020000,"%SystemRoot%\system32\msiexec /f %1"
-HKCR,"Msi.Package\shell\Uninstall\command","",0x00020000,"%SystemRoot%\system32\msiexec /x %1"
+HKCR,"Msi.Package\shell\Open\command","",0x00020000,"%SystemRoot%\system32\msiexec /i ""%1"""
+HKCR,"Msi.Package\shell\Repair\command","",0x00020000,"%SystemRoot%\system32\msiexec /f ""%1"""
+HKCR,"Msi.Package\shell\Uninstall\command","",0x00020000,"%SystemRoot%\system32\msiexec /x ""%1"""
 
 HKCR,".pif","",0x00000000,"piffile"