New corporate laptop with Windows 10 on it. Trying to install 1Password 8 and get error dialog saying it couldn't complete installation and was rolling back changes. Where can I find log which will tell me what it failed? 1Password Version: latest download today Extension Version: Not Provided OS Version: Not Provided Referrer: forum-search:https://1password.community/search?Search=Windows%2010%20error%20%22Unable%20to%20complete%20installation%22

Hi @MNBowler: I'm sorry you're running into trouble here. The install logs for 1Password can be found here by pasting this address into the File Explorer address bar: %localappdata%\1Password\logs\setup. Attach the relevant log file to an email addressed to support+forum@1password.com. Include a link to this thread: https://1password.community/discussion/127207/windows-10-error-unable-to-complete-installation#latest, and your username: MNBowler. After emailing in, you'll receive a support ID that looks something like [#ABC-12345-678]. Post that here, and I'll be able to connect your thread here with your email conversation and figure out what could be going on. Thanks! Jack

Thank you, Jack.P_1P. I looked at the logs and did not see any errors logged UNTIL the rollback started ... there is a "permission denied" error on a rename operation. Nothing logged indicating what precipitated the rollback.

Thanks for the info, @MNBowler. As Jack mentioned, if you're able to contact us quickly by email with a link to this thread (you've already provided great info to start), we can help you out with the system-specific steps needed to sort this out. We'll look forward to making this issue a thing of the past for you! 👍

Any update on this one? We're seeing it on a number of Windows installs in our environment, and this is a recent (last week or 2) issue.

Having this same issue, but on Windows 11. It started with the above error message when trying to update from 8.4.x to 8.5. I uninstalled version 8.4 (of the desktop client) and now I cannot re-install version 8.5. I still have the browser plugin installed and running. I see the same "permissin denied" error in the log. Will email that log to support.

Windows 10 error "Unable to complete installation"

32 Replies

ag_mike_d
1Password Team
3 years ago
@gregJe - I'm happy to hear this was resolved after disabling McAfee.

If you have troubles in the future with 1Password installations or updates, you can exclude the entire 1Password folder and the 1Password.exe in McAfee, then reboot your device. The 1Password directory can be found here - %localappdata%\1Password and the 1Password.exe is here: %localappdata%\1Password\App\8.

Thanks for your reply!
Former Member
3 years ago
I had this issue as well. I disabled everything in McAfee Endpoint security and re-ran the install. It worked.

[2023-01-04 07:42:29.181885 -05:00] INFO [op_windows_starter::transaction] op-windows-starter\src\transaction.rs:170: renaming C:\Users\username\AppData\Local\1Password\update to C:\Users\username\AppData\Local\1Password\app
[2023-01-04 07:42:29.562934 -05:00] ERROR [op_windows_starter::installer] op-windows-starter\src\installer.rs:169: failed to move app files. Error: Io(PermissionDenied)
[2023-01-04 07:42:31.221533 -05:00] INFO [op_windows_starter::installer] op-windows-starter\src\installer.rs:374: starting C:\Users\username\AppData\Local\1Password\app\8\1Password.exe
[2023-01-04 07:42:31.221961 -05:00] ERROR [op_windows_starter::installer] op-windows-starter\src\installer.rs:201: Failed to start previous app. Error: The system cannot find the path specified. (os error 3)
1P_PeterG
Community Manager
4 years ago
Thank you for letting us know, @schoon, and it's great that things are now working properly. We'll be here and happy to help if there's anything further we can do! 👋
Former Member
4 years ago
Jack_P_1P Installing the program in Safe Mode has resolved the issue. Thank-you for the support.
Jack_P_1P
1Password Team
4 years ago
You're very welcome @schoon.

Jack
Former Member
4 years ago
Excellent. Thank-you.
Jack_P_1P
1Password Team
4 years ago
Hi @schoon:

I've just located your email, and I sincerely apologize for the delay. I'll be replying with some more details there shortly.

Jack

ref: AVF-29222-714
Former Member
4 years ago
1P_PeterG Hi Peter - I've yet to get a response to my email...
What else can I do to move things along?
ag_mike_d
1Password Team
4 years ago
Hi @beeker, thanks for reaching back out to us and sorry for the continued problems with updates and version 8.7.3. We'll be in touch with you shortly.

ref: IXY-84669-148
Former Member
4 years ago
well, I seemed ok but now 1Password is trying to update 8.7.2 to 8.7.3 and failing with the same error messages as previously. will email logs to support address....