HolidayBuyer's Guide

Mac OS forum

General discussion

User Library file renamed after reboot, no settings saved...

by Aaron.Smith / July 21, 2009 8:21 AM PDT

This is one of the weirdest things I've ever seen on a Mac. I was helping my mother-in-law with her computer because she said that all her settings has disappeared when she put her machine to sleep. When I logged in I could see that there was a brand new Library folder in her user directory, as well as a new folder named "[8764" which appeared to contain her old library files. I renamed the new Library to Old_Library and renamed the mystery directory to Library, then rebooted. When the machine finished booting here's what I found"

1. Another brand new Library directory (as well as the Old_Library directory)
2. A directory inside the new Library named "[8764" that contained the original Library contents

I was able to move some files into the newly created Library to restore email, browser and chat settings.

This is one of the strangest things I have ever seen in 15+ years of using a Mac. Anyone have any ideas what's going on here?

Discussion is locked
You are posting a reply to: User Library file renamed after reboot, no settings saved...
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: User Library file renamed after reboot, no settings saved...
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Wow...that's a new one...
by tkessler / July 21, 2009 10:19 AM PDT

I've never heard of that happening, on any Unix, Linux, or Mac system. What programs, plugins, enhancements, or other alterations might she be running? Any recent crashes or resets, or other odd behavior? I'm hesitant to say this is a virus, but malware can't yet be ruled out either.

Collapse -
Check for Trojans...

Agreed, totally weird.

You should probably check for Trojans (even if it's arbitrary).

Check out this article from MacFixIt:
It has several links to Security tools for Trojans and Malware on Macs.

Aside from that, have you created a new User to test this issue? You should probably determine if this issue is system-wide or related to a corrupt User.

Collapse -
I've seen it..

I've seen this behavior as a "recovery" mechanism from a corrupted file, once on OS X and once on Windows, both Microsoft products FWIW but only these two times in about 7 years. In both cases, the corrupted file wasn't due to anything malicious.

Collapse -
I will check...
by Aaron.Smith / July 24, 2009 3:25 AM PDT
In reply to: I've seen it..

There's nothing in particular that I know of running that would cause it (but it's not my machine). She's primarily an email/web browser, but she does download some games like bejeweled, so I'll ask about that.

Thanks! I thought it might be something corrupt. So, does it seem like a system problem, since its automatically recreating the Library directory? If so, I would think it would be good to focus on the Apple-related items in the directory.

Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Cameras that make great holiday gifts

Let them start the new year with a step up in photo and video quality from a phone.