Latest Windows Defender marking some software as malware

I updated windows defender yesterday (13/feb/2013) and is marking some know software as malware, the software is:

vlc 2.0.5-win32.exe and VLC\uninstall.exe, I installed this from videolan.org a while a go but update it to the this version from the auto update feature
Exact Audio Copy\uninst.exe, installed from www.exactaudiocopy.de
F.lux\uninstall.exe, installed from stereopsis.com/flux/
Privoxy\privoxy_uninstall.exe, installed from www.privoxy.org/

Currently those files are on quarantine and i hope is a false positive, is anyone getting warnings as well?

The full details of Windows defender are (edited because my OS is in Spanish):
Version Windows Defender: 4.0.9200.16384
Version antimalware: 4.0.9200.16384
Version engine: 1.1.9103.0
Definition antivirus: 1.143.2233.0
Definition antispyware: 1.143.2233.0

Thanks

Because the critics said those should be malware in the ratings. So they are trying to match the benchmark.

Try uploading those files to virustotal and see what other AVs might say.

Just because it's a normal EXE on most systems, doesn't mean that a virus hasn't infected it on your system. 

The best way to tell what's going on is to get a second, third, fourth and so on opinion, and the fastest way of doing that is virustotal.

@evildictaitor: I will try that, thanks.

I scanned my VLC directory, it didn't turn up anything positive.

@ZippyV:crap, thanks. I guess is reinstall time for me.

@JuanZamudio: Completely off topic, but I love your avatar! We have a guinea pig at home too

@GoddersUK:lol thanks, we have 4 now, those little bastards are adorable.

@JuanZamudio: Aren't they just! And yes, they have a tendency to multiply!