I get a "DeleteFile failed; code 5" error whenever I try to install this. I googled it and checked all the pages on the first page but get nothing. A solution would be appreciated.

For clarification: the client refused to update itself, so I attempted to reinstall it. I has given me errors on the auto update failing, but I've chosen to ignore them before as I was able to play games (read gwent) just fine without having to update it. It now demands an update though, and I had to reinstall the client.

Any help would be appreciated. If I can't get this working it's no biggie though. I'll just... Not play gwent I guess.

Screenshot of error message attached. Thanks.

EDIT: Forgot to tag this as a "problem". Noticed it just after I posted this. Hope that doesn't cause any issues.
EDIT2: Making a new post, just in case

Check your firewall to make sure Galaxy has internet access and that it has administrative rights. From the error you are getting I'm guessing Galaxy don't have the rights to delete the file. I would contact support, they should be able help.

I'll check my firewall, thank you.