Hello, Please help. I am having issue to start up oblivion. My computer is a real gaming rig, therefore, no issue about that. I looked everywhere and nobody seem to have the same problem. You see, I installed a few mods today and everything was running fine. I closed the game about 2 hours ago and now it won't open up. So what I did is I deactivated each mod one by one systematically, including the official dlc, and apparently, it the fighter stronghold(battle horn castle) who is causing the problem. When I deactivate it I can start the game but I can't load it because I was in the battle horn castle when I left earlier and I don't want to screw up the game. I was in the training room if it is relevant. In any case, my only option right now is to restart the game and play without the dlc, which bothers me. Also I installed boss which doesn't start up either and says it cannot find the oblivion master file but it is there. Anyone has any suggestion? It would really be appreciated. I already tried to reinstall the game. It didn't changed anything. Dionnal2 If needed - Here is the list of mod/dlcs/expansion I am using: Shivering isles, All the official dlc's, Unofficial oblivion patch, Midas magic spell of aurum, Noble armory, Facial textures by enayla, Natural faces, Natural environment 2.1, saddlebag, sky castle, borderless cyrodil,(currently unactive) Elven map redux, darnified UI 1.3.2, Quralt tp3, New_Horse_Armor_Texture_Pack_by_Zira, OBSE, Edit: Ok I fixed the BOSS issue. It was in the wrong directory that all. I am still clueless about the game not launching thought. This is BOSS log: −Summary No change in recognised mod list since last run. Mods sorted by your userlist are counted as recognised, not unrecognised, plugins. Number of recognised plugins: 21 Number of warning messages: 0 Number of unrecognised plugins: 2 Number of error messages: 0 Number of ghosted plugins: 0 Total number of messages: 24 Total number of plugins: 23 −Userlist Messages No valid rules were found in your userlist.txt. −Recognised And Re-ordered Plugins Oblivion.esm Unofficial Oblivion Patch.espVersion 3.2.0 Note: Use Standalone MOBS if using Frans or OMOBS if using FCOM/OOO. Both versions can be found here: http://www.tesnexus.com/downloads/file.php?id=28537 Note: Recommend installing UOP Supplemental for additional fixes: http://www.tesnexus.com/downloads/file.php?id=27710 Bash Tag suggestion(s): {{BASH: Actors.ACBS, Actors.AIData, Actors.AIPackages, Actors.CombatStyle, Actors.DeathItem, Actors.Stats, C.Climate, C.Light, C.Music, C.Name, C.Owner, Creatures.Blood, Delev, Factions, Invent, NPC.Class, Names, Relations, Relev, Scripts, Stats}} and remove [C.Water] tag(s) (only exist in older version). Oblivion Citadel Door Fix.esp DLCShiveringIsles.esp Note: If using the russian GOTY edition, move this plugin before 'Unoffical Oblivion Patch.esp' to allow the UOP to make its quest fixes. See infoRUS (http://u.to/0rwuAQ) Natural_Weather_by_Max_Tael.esp Note: Original mod is heavily bugged. Make sure you are using Ryu Doppler's fixed version. Natural_Weather_HDR_by_Max_Tael.esp Note: Original mod is heavily bugged. Make sure you are using Ryu Doppler's fixed version. Natural_Habitat_by_Max_Tael.esp Natural_Water_by_Max_Tael.esp DLCHorseArmor.esp Bash Tag suggestion(s): {{BASH: Scripts}} Contains dirty edits: 3 ITM, 0 UDR records. Needs TES4Edit cleaning: http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide DLCOrrery.esp Bash Tag suggestion(s): {{BASH: Actors.AIPackages}} Contains dirty edits: 11 ITM, 2 UDR records. Needs TES4Edit cleaning: http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide DLCVileLair.esp Contains dirty edits: 26 ITM, 1 UDR records. Needs TES4Edit cleaning: http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide Incompatible with: 'Kumiko Manor' DLCMehrunesRazor.esp Contains dirty edits: 21 ITM, 15 UDR records. Needs TES4Edit cleaning: http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide DLCSpellTomes.esp Bash Tag suggestion(s): {{BASH: Relev}} Contains dirty edits: 40 ITM, 0 UDR records. Needs TES4Edit cleaning: http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide DLCThievesDen.esp Bash Tag suggestion(s): {{BASH: C.Name, C.Light, Actors.ACBS, Actors.AIPackages, Actors.Stats}} Contains dirty edits: 5 ITM, 135 UDR records. Needs TES4Edit cleaning: http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide SkyCastle.esp DLCBattlehornCastle.esp DLCFrostcrag.esp Bash Tag suggestion(s): {{BASH: C.Name, C.Owner, Factions}} Contains dirty edits: 73 ITM, 94 UDR records. Needs TES4Edit cleaning: http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide Knights.esp Bash Tag suggestion(s): {{BASH: Actors.AIPackages, Factions, Relations}} Contains dirty edits: 121 ITM, 257 UDR records. Needs TES4Edit cleaning: http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide Natural_Vegetation_by_Max_Tael.esp Note: Put before Unique Landscape mods to return tree sizes there to normal. Borderless_Cyrodiil-3578.esp Note: Use .ini tweak or Wrye Bash Bashed Patch tweak instead where possible to avoid conflicts. MidasSpells.esp Bash Tag suggestion(s): {{BASH: Invent}} −Unrecognised Plugins Reorder these by hand using your favourite mod ordering utility. SaddleBag.esp NobleArmory.esp