Windows 7: Libraries unlinked, all programs acting like they're running for the first time

I had my PC running for 2 weeks prior to shutting it down to move it somewhere. When I booted it back up, I had a weird series of problems. The only unusual thing that had happened recently was at one point avast detected that a junk toolbar (spigot) had been installed and asked to remove it - I did. Not sure if that’s related. I had run the computer normally for a couple of days after that, but this is the first reboot after it.

Anyway, I put my pc back together and boot up. My wallpaper is missing, though the desktop icons are there. All of my programs pinned to the taskbar have their icons appear correctly on the task bar, but clicking on them results in a message saying something like “this item no longer exists, remove it from the task bar?”

As I re-add programs manually to the task bar, they work again.

My libraries are in a non-standard place - I wanted them off my SSD so My Music, My Documents, etc. are on my D: drive. When I opened windows explorer, and clicked libraries, it was blank. No libraries existed. I had to manually re-add them to get them to show up there. The \Users folder is in the normal place on the C drive, I just created the libraries on the D drive when I originally installed this.

Weirder, when I launch programs, they act as if I’m launching them for the first time. Lightroom asked me for my serial number, winamp had no media library at all, and thunderbird launched the wizard asking me to create an account, and all of my previously saved e-mails were lost. Other programs run the first time setup wizard if they have one, and don’t have my preferences/configurations saved.

Not every program has been affected, strangely. Windows live mail did retain my accounts and previous e-mails (separate accounts from thunderbird). So far that’s the only program I’ve noticed that’s working normally.

When I actually go digging around in the application data folder for thunderbird, the profile is either gone or overwritten. My messages file is a few kilobytes in size instead of the several hundred megabytes it should be. So it isn’t simply mislocating the user files, they’re gone. Same with the winamp media library files.

I really can’t tell what’s happening. It seems as though it isn’t reading the data that the various programs store under application data (or possibly the registry), therefore mistaking them for being run for the first time, and then overwriting the existing preferences/libraries/etc with a new copy that’s essentially blank because it’s like a first time user. So I seem to have lost my e-mail, winamp library, etc.

Does anyone have any idea what’s going on?

Oh, and while system protection/restore points are set to on, no restore points actually exist, nor do I have general backups of my C drive, so there doesn’t seem to be a way to recover that way.

I think my preferences and libraries for various programs are gone, but I’d like to understand what’s going on so I don’t screw anything else up, or if I can’t figure it out, I’ll probably have to reinstall windows.

My first impression is a corrupt or missing personal registry hive. I’ve seen this happen on a Windows 8 installation, but not on Windows 7.

The hive is the “ntuser.dat” file in your C:\Users\SenorBeef directory (assuming your user name is SenorBeef, of course). Is it possible you ended up moving this file over to your D: drive?

How exactly did you manage to move the Libraries? They’re set-unions of various directories, so the way to unclutter your SSD drive would be to create a MP3 directory on the D: drive, move the individual music files over there, then alter the properties of the Music Library to include that new directory. Repeat for Documents, etc. But the Libraries themselves wouldn’t “move”.

If you can’t get everything back in order, I recommend you create a new account on the PC and see if that one seems stable.

Do a Windows System restore to a point before the move.
This is what it’s there for.