# 3dsmax fail to start - corona related **URL:** \ **Category:** Issues\ **Created:** [March 2, 2015, 8:22am UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360 "2015-03-02T08:22:51Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 8:22am UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/1 "2015-03-02T08:22:51Z")
Hi there! Yesturday everything was absolutely fine, but today I get an error on startup (it stops loading files during startup on corona dlr) After uninstalling corona with Corona3dsmaxRemove everything returns to normal. tried few times to install and uninstall corona with same result, any idea? regards TH ---
**Author:** ![Ondra\_1](https://avatars.discourse-cdn.com/v4/letter/o/50afbb/32.png) [@Ondra\_1](https://forums.chaos.com/u/Ondra_1)\ **Post date:** [March 2, 2015, 8:33am UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/2 "2015-03-02T08:33:35Z")
Are you trying the 7.2 version, or 1.0? ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 8:37am UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/3 "2015-03-02T08:37:09Z")
I’ve tried 1.0 and the latest 1.00.01 build ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 8:37am UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/4 "2015-03-02T08:37:51Z")
everything was rock solid till today ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 11:56am UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/5 "2015-03-02T11:56:04Z")
still nothing, is there any chance to solve this problem? ---
**Author:** ![Ondra\_1](https://avatars.discourse-cdn.com/v4/letter/o/50afbb/32.png) [@Ondra\_1](https://forums.chaos.com/u/Ondra_1)\ **Post date:** [March 2, 2015, 12:16pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/6 "2015-03-02T12:16:45Z")
are you getting any kind of error messages? If yes, can you post them? ---
**Author:** ![Ondra\_1](https://avatars.discourse-cdn.com/v4/letter/o/50afbb/32.png) [@Ondra\_1](https://forums.chaos.com/u/Ondra_1)\ **Post date:** [March 2, 2015, 12:17pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/7 "2015-03-02T12:17:29Z")
also please try the latest daily, there was 1 error that could be related to your problem fixed: [Daily Builds 1.0 - 1.4 - Corona for 3ds Max :: Previews (Daily Builds) - Chaos Forum](https://forum.corona-renderer.com/index.php/topic,7239.0.html) ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [March 2, 2015, 12:23pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/8 "2015-03-02T12:23:07Z")
Are you sure Corona files copied correctly? Did you try uninstalling and then copying Corona files manually? ---
**Author:** ![grimmorf](https://avatars.discourse-cdn.com/v4/letter/g/a5b964/32.png) [@grimmorf](https://forums.chaos.com/u/grimmorf)\ **Post date:** [March 2, 2015, 1:06pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/9 "2015-03-02T13:06:22Z")
Hello. Had this issue too. Yesterday all was fine. Today max start to crash on startup when loading corona.dlr. When uninstall corona - all fine, when install A6 - all fine, when install 1.0 or 1.00.01 - it crashes. Reinstall 3dsmax, install 1.0 - it crashes. I solved a problem only by deleting folder: C:\Users\*\*\*\*\AppData\Local\Autodesk\3dsMax\2014 - 64bit After that it start working. It happened only on 1 of 3 my pc, others works fine. ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 1:15pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/10 "2015-03-02T13:15:31Z")
> [@grimmorf](#): > > Hello. > > Had this issue too. Yesterday all was fine. Today max start to crash on startup when loading corona.dlr. When uninstall corona - all fine, when install A6 - all fine, when install 1.0 or 1.00.01 - it crashes. Reinstall 3dsmax, install 1.0 - it crashes. > > I solved a problem only by deleting folder: C:\Users\*\*\*\*\AppData\Local\Autodesk\3dsMax\2014 - 64bit > After that it start working. It happened only on 1 of 3 my pc, others works fine. yep… the same situation here. i’ve tried RC2/RC3/1.0 /1.0.01 and legacy version as well - still crashes. I’m sure I’ve copied all files correctly to right folders, as always. I have to try your method, but first are you sure it’s safe to delete this folder? It contains subfolder called ENU, I thought it might be something important (about 120MB in there)? ---
**Author:** ![grimmorf](https://avatars.discourse-cdn.com/v4/letter/g/a5b964/32.png) [@grimmorf](https://forums.chaos.com/u/grimmorf)\ **Post date:** [March 2, 2015, 1:20pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/11 "2015-03-02T13:20:59Z")
I didn’t delete it. Just renamed it (renamed ENU to ENU\_old). When max start It creates new folder with exact same name, but this will reset max to default settings. You can read about it here: [http://knowledge.autodesk.com/support/3ds-max-design/troubleshooting/caas/sfdcarticles/sfdcarticles/Resetting-3ds-Max-3ds-Max-Design.html](http://knowledge.autodesk.com/support/3ds-max-design/troubleshooting/caas/sfdcarticles/sfdcarticles/Resetting-3ds-Max-3ds-Max-Design.html) ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 2:10pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/12 "2015-03-02T14:10:21Z")
grimmorf what a relief, it works (so far). Anyway You should be more precise when writing “delete” instead of “rename” 😉 Thank You for your reply ---
**Author:** ![Ondra\_1](https://avatars.discourse-cdn.com/v4/letter/o/50afbb/32.png) [@Ondra\_1](https://forums.chaos.com/u/Ondra_1)\ **Post date:** [March 2, 2015, 2:12pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/13 "2015-03-02T14:12:18Z")
there is also a corona subfolder somewhere in there, you can try deleting it (it is safe to delete) to see if that helps ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 2:15pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/14 "2015-03-02T14:15:26Z")
ok keymaster thanks a lot for feedback 😃 ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [March 2, 2015, 2:19pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/15 "2015-03-02T14:19:20Z")
twoheads / grimmorf Actually, if you haven’t deleted the previous folder, could you rename it back so that the issue is present again and see if deleting Corona folder helps? That could be very helpful for other users with this problem! ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 2:19pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/16 "2015-03-02T14:19:33Z")
it should be it, right? C:\Users\xxxxxx\AppData\Local\Autodesk\3dsMax\2014 - 64bit\ENUOld\en-US\plugcfg\corona ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [March 2, 2015, 2:27pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/17 "2015-03-02T14:27:17Z")
that’s the only one I could find too ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 2:31pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/18 "2015-03-02T14:31:34Z")
Ok. it works… the procedure below 1 - when max crashes at startup because of “corona DLR issue” 2 - go to C:\Users\xxxxx\AppData\Local\Autodesk\3dsMax\2014 - 64bit\ENU\en-US\plugcfg\corona and delete corona folder (you might make a copy of the folder first just in case). or 3 - go to C:\Users\xxxx\AppData\Local\Autodesk\3dsMax\2014 - 64bit\ENU and rename ENU folder to ENUOld, it works as well. TH ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [March 2, 2015, 2:34pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/19 "2015-03-02T14:34:37Z")
Great! Thank you very much! ---
**Author:** ![twoheads](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@twoheads](https://forums.chaos.com/u/twoheads)\ **Post date:** [March 2, 2015, 2:36pm UTC](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360/20 "2015-03-02T14:36:09Z")
no problem 😃 [Next page](https://forums.chaos.com/t/3dsmax-fail-to-start-corona-related/130360.md?page=2)