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How to Downgrade Skyrim SE to Fix SKSE64 & Mods (2021) – Downgrade Patcher v1.5



Skyrim Anniversary Edition Update broke the SE Build of SKSE64 and mods that require. In this video, I’ll show you how to downgrade it using the Unofficial Skyrim Special Edition Downgrade Patcher, which has received a major update since my previous video on it.

Unofficial Skyrim Special Edition Downgrade Patcher:
https://www.nexusmods.com/skyrimspecialedition/mods/57618

How to Install SKSE64 AE Build: https://youtu.be/49FIlNnNc2c
Skyrim AE Earn Achievements w/Mods: https://youtu.be/VDWjPX7Om9g
Major SKSE64 Update: https://youtu.be/LF9oOQUfyUg

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MUSIC CREDIT
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The Elder Scrolls V: Skyrim Official Soundtrack

CHAPTERS / TIMESTAMPS
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0:00 – Introduction
0:12 – Supported Game Versions
0:38 – Verify Game Files to Prepare for Patcher
1:04 – How to Download the Downgrade Patcher
1:21 – Both Patcher Versions Explained & Comparison
2:23 – How to Download the Downgrade Patcher (Part 2)
2:35 – How to Use the Downgrade Patcher
3:46 – Demo of SKSE64, Mods, AE Content Working
4:38 – How to Revert the Downgrade
5:15 – Final Words

#TheElderScrolls #Skyrim #Gaming

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48 comments

  1. You asked for an updated video on the updated version of Downgrade Patcher, so here it is! 😘
    Nexus Mods Link: https://www.nexusmods.com/skyrimspecialedition/mods/57618
    How to Install SKSE64 AE Build: https://www.youtube.com/watch?v=49FIlNnNc2c

    TIMESTAMPS:

    0:00 – Introduction

    0:12 – Supported Game Versions

    0:38 – Verify Game Files to Prepare for Patcher

    1:04 – How to Download the Downgrade Patcher

    1:21 – Both Patcher Versions Explained & Comparison

    2:23 – How to Download the Downgrade Patcher (Part 2)

    2:35 – How to Use the Downgrade Patcher

    3:46 – Demo of SKSE64, Mods, AE Content Working

    4:38 – How to Revert the Downgrade

    5:15 – Final Words

  2. I hate that I've had to come here 2 years later. May the waters of Bethesda finally dry up and turn them to dust.

  3. I really don't know what im doing wrong, i do eveything you said, but my game won't start now

  4. How can i downgrade if i don't have the game on Steam?

  5. I downgraded it but now its telling me I have to upgrade it to the latest version as skyrim 1.5.97 is incompatible with skse64 2.1.5

  6. fanatastic video no nonsense right to the point keep it up

  7. Could you please tell which version of skyrim you succesfully modded this with? Was it 1.5.xx SE or 1.6.xx AE?

  8. do i need to download the things from creation club before downgrading?

  9. is this still needed in 2023? help me guys Im new in skyrim modding. I want to replay skyrim with mods someone helpme

  10. how do i reverse this i did it and it said my game is too old and cant run the skse

  11. I did exactly this but my Full Patcher says ,,File doesen´t match expected format´´ any tips anyone?

  12. Dose anyone know how to get the unofficial skyrim special edition patch 4.2.1 as it's no longer on nexus and my vortex has updated it and I can't get back the version I need to run my mods

  13. At this point my game broke again im tempted to jusy by it off microsoft so i never have to wory about this again

  14. Thank you so much!, I held off updating this by unticking the auto update, but somehow it happened without my knowledge today. I panicked because I don't actually know much about modding, I have kind of winged it, downloaded vortex and Nemesis, and a nice ENB, and it's been tricky to get things working, finally I had it set up beautifully, 30+ mods, combat overhaul, nice ENB, immsersive mods, animations, quests, dungeons, Homes, vampire/necro/werewolf/magic spells overhaul, all working perfect for my necromancer/evil playthrough, then tonight it just stopped working with that message! Just when I was finally about to stop modding and actually properly enjoy the game. Spent countless hours already trying to make things work, like even nemesis took me days because it wasn't working.

    I've had some shit news with cancer recently of a family member and as stupid as it sounds this nearly through me over the edge because it was a bit of escape from my shit life atm lol, and I was only just about to play it and lose myself in it.

    You saved me hundreds of hours of gameplay and now I have this game to play all week on my week off!!

    thanks so fucking much mate!!!!!!!

  15. Probably its not gonna work, cuz this shit is getting more and more complicated along the years, english is not my mother tongue and im dumb as fuck. But im doing my best. Anyway, your job is freaking awesome dude, keep goind, and thank you anyway. ❤

  16. Hi, I'm having a problem. I have downgraded my Skrim back to version 1.5.970 and downloaded the SKSE for version 1.5.970. However, when I'm trying to run SKSE it keeps failing and this notification always pop-up "Failed to locate an appropriate address library with the path: Data/SKSE/Plugins/versionlib-1-5-97-0.bin". However, when I checked into the Data/SKSE/Plugins folder, the 'version-1-5-97-0.bin' file is already there. Can someone provide me with some advice regarding this problem?

  17. Do I need to downgrade all mods to 1.5.97 with the patcher or can I continue to download 1.6.x?

  18. Hey mine says looking for skyrim special edition do you know why this would happen

  19. I’ve tried everything and finally this worked!! I was afraid I’d never be able to get it fixed! Thank you. I hope non-English versions get a patcher too eventually.

  20. windows 11 broke this ;/ can't run the exe file without the "pc cant run this app" msg popping up

  21. my patcher cant finish help pls~!

  22. i did everthing in the video, but now my game crash everytime i start the game:(

  23. will the best of both worlds be enough for some older dll dependant mods to work?
    will the full patcher prevent me from having the dlc expansions? Dawngard, Dragonborn and hearthfire? since they are from special edition, not aniversary edition.

  24. Anytime you download a new mod, do you have to redo the patcher?

  25. Hello!
    I need your help, there are 2 mods that I can't get to work. This would be one: Shrine of Vedir I ADXP MCO SCAR Greatsword Moveset and the other would be CBBE – 3BA Vanilla Armor Replacer. I put everything you want but it doesn't want to work. There is a Steam version called Skyrim Special Edition. I haven't been able to solve it since last December and I don't know what to do anymore. Thank you for your answer in advance.

  26. So when i use the downgrader I have to download the se version mods or do I also can use AE version?

  27. If I use the Best of Both Worlds version can I still use the mods that I already installed for AE?

  28. So I ran the patcher and turned off auto updating for Skyrim yet every time I try to run it through Mod Organizer, it continues to tell me I'm using the Anniversary Edition AND it smacks the files just right into my fucking Skyrim folder. This is greatly upsetting. 🙁

  29. do i download AE skse or SE?

  30. MODS ARE ALL FORM 43, DONT WORK ON SKYRIM SPECIAL EDITION IT ONLY ACCEPTS FORM 44 PLUGINS :(:(:( THIS SUCKS

  31. Can I still use the mods I have for version 1.6.64 if I use best of both? I would like to use DaR but I don't want to redownload and build my mod list over again.

  32. thank god why are they still updating this 12 year old singleplayer game

  33. Say I downgrade using best of both worlds downgrade. Will I then need to download AE or SE versions of mods such as address library?

  34. It didn't work for me..do you have any recommendations?

  35. he sounds like the infographics narrator

  36. why do you have so many discs (like the SSD and other ones)

  37. now it's telling me that i'm using an outdated version 🙁 first it was too new and now it's too old. which version am i supposed to be using?

  38. Outstanding tutorial. Clean, streamlined, and not full of all the extra flashy garbage. I rarely subscribe to tutorial channels. Your video was so good that you made the list. Keep up the good work.

  39. So ive had a good bit of progress doing this manually without a patcher

  40. Skse keeps crashing for me. :T

  41. So when downloading the skse64 from silver after downloading the downgrade mod, do I use the one for special edition or do I still use the download for anniversary edition

  42. So : I want to downgrade my SKSE executable from SE 1.6.640 (with some CK additions) to SE 1.6.320 in order to finally load Dynamic Animation Replacer (I read it was the last version supporting it). I already have the SkyrimSE.exe in 1.6.640 and managed to get the one in 1.6.320, but SKSE 1.6.640 refuses to launch the older game version. So, to downgrade the SKSE executable I would need the BestofbothWorlds patcher ? Does this patcher specifically targets the SKSE executable or the entire folder ? In my case, into which version this patcher should revert my game ?

  43. I downloaded the SKYRIM Ani Edition codex v1.6.318, and tryed to use the BestOfBoth to downgrade to 1.5.97, but it didnt work… Gave me a error:
    "System.Exception: Can't patch file, it doesn't match the expected format

    at Patcher.ViewModels.MainWindowViewModel.PatchFile(Instruction file, AbsolutePath gamePath) in C:ossussedpPatcherViewModelsMainWindowViewModel.cs:line 136

    at Patcher.ViewModels.MainWindowViewModel.Start() in C:ossussedpPatcherViewModelsMainWindowViewModel.cs:line 110
    Error! Can't patch file, it doesn't match the expected format"

    Can someone help me with this?

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