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"Error writing to file: ...epfwndis.sys. Verify access to that directory"


martinl
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Hello all,

I had searched high and low for a remedy to this situation before posting, but the only resources I can find go back to 2009 and doesn't provide a fix.

Trying to install ESET Endpoint Security on a system. The system previously had Total Defense installed on it, which we uninstalled to replace with ESET. I keep receiving the error message while installing: "Error writing to file: C:\Program Files\ESET\ESET Endpoint Security\Drivers\epfwndis\epfwndis.sys. Verify that you have access to this directory." The system never had ESET on it prior.

After each failed install, we've tried clearing out every trace of ESET in the registry and any remaining files leftover when the system forces a rollback after a failed installation (to which there usually are not any). We've attempted to reset local security policies to allow writing, but that has no effect aswell.

I was hoping I could receive some insight on this situation to hopefully finish this install- I've attached an install log with this post.

Thank you for your time.

install.txt

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martinl,

 

   I believe that the self-defense driver is still intact. Please attempt the following action against the machine (safe mode uninstall using a tool) and advise success (or otherwise):

 

hxxp://kb.eset.com/esetkb/index?page=content&id=soln2289

 

Patrick

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  • ESET Moderators

Hello MartinL,

 

something is blocking our attempts to write to files.

Have you already uninstalled the Total defense and all it's leftovers and restarted the system?

 

Maybe you could watch the events in the system using Process monitor to analyze what is happening there.

 

If you won't be able to do so please let us know, we will try to assist you.

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In complete chronological order:

We uninstalled Total Defense, rebooted, attempted to install ESET, failed with the aforementioned error, tried to remove all traces of ESET in both the registry and any folders or files in safe mode, attempted a reinstall, failed, utilized the ESET Uninstaller in safe mode which found remenants of Symantec, attempted to install again which failed, tried to use the ESET uninstaller again which uncovered nothing, and any attempts to install after have been met with the same error message.

Apart from wiping the slate clean and just opting for a format and install, I'm spinning my tires in the mud trying to get this to work.

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  • ESET Moderators

Hello MartinL,

 

we will need some logs to look into it.

So please enable logging of the installation, you can follow these instructions, also please capture events in the system with Process monitor, please enable advanced logging (enable it before installation and disable it after you get the error message), also please provide us with SysInspector log from that system.

 

So please pack these 4 logs (install log setupapi log, Processmonitor log and SysInspector log) and send me private message with download link.

 

P.S.

you can also pack in ESETUninstaller log so we can check it.

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After hours of racking our brains on this anomaly of a system and a good bit of time with ESET Business Support, we've opted to simply wipe and restore the system.

Thank you all for your assistance and persistence in dealing with this issue.

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