topic Re: installation problem fusion in Fusion Support Forum

installation problem fusion

topo89888 — Wed, 30 Jul 2025 13:51:22 GMT

please help, unknown error when installing fusion

Re: installation problem fusion

RajkumarIlanchelian — Wed, 30 Jul 2025 13:57:45 GMT

@topo89888 Please try the below.

1. Make sure that Fusion installer is not running in task manager
2. Go to %localappdata%\Autodesk\ then DELETE the following folders – Webdeploy, Web Services, Identity services, Autodesk Fusion 360 ((IF you do not have any other Autodesk products installed, delete the Full Autodesk folder)
3. Delete the shortcut that is used to launch Fusion
4. Restart your machine
5. Do not use the same Fusion installer. Can you please download the installer again
6. Now install again

Re: installation problem fusion

topo89888 — Wed, 30 Jul 2025 14:15:40 GMT

can you please tell me how to go to % localappdata %\Autodesk\?

Re: installation problem fusion

topo89888 — Wed, 30 Jul 2025 14:32:31 GMT

I think I deleted all the folders you indicated and did all the above steps, unfortunately it didn't help

Re: installation problem fusion

RajkumarIlanchelian — Wed, 30 Jul 2025 16:12:15 GMT

@topo89888 The logs indicate that some of the requests from Fusion are not passing through.

1. Would it be possible for you to say connect to a different network like a phone hotspot and see if that moves this along?
2. Is there any windows defender or anti virus that is blocking the installer?

Re: installation problem fusion

topo89888 — Wed, 30 Jul 2025 17:33:26 GMT

1. Connecting to another network didn't help either.
2. It seems that no, Windows Defender doesn't interfere.

Re: installation problem fusion

topo89888 — Wed, 30 Jul 2025 21:22:02 GMT

the problem was indeed hidden in the connected network, thank you very much

Re: installation problem fusion

askHLJMM — Sun, 17 Aug 2025 19:55:12 GMT

how did you go to local app data

?? same issue here

Re: installation problem fusion

askHLJMM — Sun, 17 Aug 2025 19:54:11 GMT

how did you go? same issue here

Re: installation problem fusion

jhackney1972 — Sun, 17 Aug 2025 20:02:27 GMT

Take a look at this Autodesk Web Page for the possible solution to your installation issue, at least according to you post screen capture.

If this answers your question, please select the "Accept Solution" on my post. If you need further help, please ask.

Re: installation problem fusion

goodlucktor1 — Mon, 08 Sep 2025 20:15:36 GMT

please help,i also had an unknown error when installing fusion

Re: installation problem fusion

goodlucktor1 — Mon, 08 Sep 2025 20:16:57 GMT

please help, i also had an unknown error when installing fusion

Re: installation problem fusion

jhackney1972 — Mon, 08 Sep 2025 20:18:41 GMT

Did you try the process outlined in Message #2 of this Forum Post?

Re: installation problem fusion

RajkumarIlanchelian — Mon, 08 Sep 2025 20:19:07 GMT

@goodlucktor1 This should help.

1. Make sure that Fusion installer is not running in task manager
2. Go to %localappdata%\Autodesk\ then DELETE the following folders – Webdeploy, Web Services, Identity services, Autodesk Fusion 360 ((IF you do not have any other Autodesk products installed, delete the Full Autodesk folder)
3. Delete the shortcut that is used to launch Fusion
4. Restart your machine
5. Do not use the same Fusion installer. Can you please download the installer again
6. Now install again

Re: installation problem fusion

mmkika — Sun, 14 Sep 2025 20:52:17 GMT

I also have a problem while installing the Fusion program. Here is the log file and a screenshot of the error.

Re: installation problem fusion

RajkumarIlanchelian — Sun, 14 Sep 2025 21:16:49 GMT

@mmkika Likely a network certification error. Can you try the solution from this thread?

https://forums.autodesk.com/t5/installation-licensing-forum/nested-asn1-error-ssl-c-4003/m-p/9497488/highlight/true#M34251

Re: installation problem fusion

mmkika — Sun, 14 Sep 2025 21:59:42 GMT

Thank you for the quick response. However, I just tried the solution from the link you sent me and it didn’t work. This time, I got error 4014.

Re: installation problem fusion

RajkumarIlanchelian — Sun, 14 Sep 2025 22:05:01 GMT

@mmkika one more post for you to try out - https://forums.autodesk.com/t5/fusion-support-forum/cannot-install-fusion/td-p/13197799

Which country are you accessing from?

Re: installation problem fusion

mmkika — Mon, 15 Sep 2025 08:34:38 GMT

I am from Serbia. I noticed from the links you sent me that many users from Serbia are having the same problem. I uninstalled the Celik program mentioned in the posts you shared (including the certificates that come with it), but I still have the same problem and the same error.

Re: installation problem fusion

mmkika — Tue, 16 Sep 2025 21:18:58 GMT

I uninstalled the Celik program and its certificates.

I tried the solutions from the links you sent me, but I was not successful.

I also tried what one user described as a solution:

Cleaning Firefox and Internet Explorer cache, cookies, and SSL certificates (I'm only using Firefox, but I cleaned both).
Turned off the firewalls.
Told Windows Defender not to check anything.
Finally, I used IE instead of Firefox. I downloaded it and started it with IE, so I didn’t have to rename it or run it as admin.

However, it still didn’t work! Is there any other solution?