diff --git a/boot/bootdata/hivesys.inf b/boot/bootdata/hivesys.inf
index 2bed731cb6a..72585eaa303 100644
--- a/boot/bootdata/hivesys.inf
+++ b/boot/bootdata/hivesys.inf
@@ -1530,17 +1530,17 @@ HKLM,"SYSTEM\CurrentControlSet\Services\EventLog","Type",0x00010001,0x00000010
 
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Application",,0x00000010
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Application","File",0x00020000,"%SystemRoot%\system32\config\AppEvent.Evt"
-HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Application","MaxSize",0x00010003,524288
+HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Application","MaxSize",0x00010003,5242880
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Application","Retention",0x00010003,0
 
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Security",,0x00000010
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Security","File",0x00020000,"%SystemRoot%\system32\config\SecEvent.Evt"
-HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Security","MaxSize",0x00010003,524288
+HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Security","MaxSize",0x00010003,5242880
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\Security","Retention",0x00010003,0
 
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\System",,0x00000010
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\System","File",0x00020000,"%SystemRoot%\system32\config\SysEvent.Evt"
-HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\System","MaxSize",0x00010003,524288
+HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\System","MaxSize",0x00010003,5242880
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\System","Retention",0x00010003,0
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\System\Application Popup","EventMessageFile",0x00020000,"%SystemRoot%\system32\ntdll.dll"
 HKLM,"SYSTEM\CurrentControlSet\Services\EventLog\System\Application Popup","TypesSupported",0x00010003,0x00000007