You need to format the disk in drive X before you can use it

Thanks for your input.
I discovered the problem by inserting a flash drive, getting the message, clicking formatting and getting a blue screen so i cant do even that
I dont really care about the contents but i do have to use flash drives for my work.
Anyway thanks again, i was just hoping that this was something common and there was a known fix that i failed to find. I will keep searching.

There are reports that recent changes to antivirus software to scan USB drives on insertion can cause this.

But I see so little machine details but your note about the formatting leads me back to consider the usual.
Bob

But again nothing
Disabled everything antivirus related (including windows defender) inserted usb flash drive. Nothing.
Rebooted with usb flash drive plugged in and it worked. I could access everything, no prompts for formatting it, again worked like a charm. Removed it and reentered it and BAM "You need to format the disk in drive G: before you can use it" (in greek obviously). But it was just there stupid pc. You could read it 5 seconds ago. Really sad coz the antivirus would explain everything (recognising it if already connected before boot, sudden appearance of this phenomenon, etc. Gonna retry to see if i can at least format the flash drive(although i will probably get a blue screen)

As well as the names of things disabled.

There's a note about Windows Live being involved? I can't see how but it's a strange app.
Bob

I like the idea so much that i am going to uninstall adaware malware bytes and snd, and keep trying. It makes so much sense that an update of these three would cause the problem. Well probably not malwarebytes because i installed it after the problem occured.
Thanks again.

It's not a title you see moderators suggest anymore. We do find Spybot and Teatimer to create issues so for a test run, run light.
Bob

Maybe i should have posted this first but i am a bit new to this getting help thing.
The only applications usually running are: Malawarebytes(installed after the issue presented in case something the other two couldn't find was the cause)
Search and destroy
Adaware.
utorrent.
Windows live messenger.

And thats it really.
Currently i have the following to start on boot (not sure how its called, i have greek version of windows vista) from msconfig.
windows live messenger,
windows defender,
utorrent,
synaptics pointing device manager,
commonSDK,
Raid event monitor
and Daemon tools lite.
I will proceed with trying to format a flash drive and uninstalling all the adaware (because disabling them might not be enough?)

All could be tossed. And utorrent locks the most obscure files plus is a conduit to the most interesting infected machines I've found so far.

Sorry to see that appear on the list. With that in mind, take Grif's advice and scan deeply as he tells us to.

---->>>> 7726-6132_102-5098912.html?tag=posts;msg5099421

I uninstalled adaware and SnD. Tossed everything from the boot list and rebooted. Tried to format one flash drive and managed without a blue screen, so understandably i was happy and ready to come back here and sing your praises. But then i removed it and pluged it back in and again got the prompt for formating it. Gaaah i just did stupid pc.
So i went to the thread for spywares which you gave and something interesting happened.
I downloaded everything and started as per the instructions with the Rkill. It ran fine but the moment that it finished and the log appeared i got a blue screen. I dont recall exactly what it said but i thing the reason was a bad_pool_called or something like that.
Does that mean that afterall it is virus related? Or are blue screens something that could happen after Rkill.exe? I will try the other two Rkills and report back.

Rkill.com ran without a blue screen. While it was checking i got 3 "instalation failed" prompts (no idea of what) and an "iexplorer crashed" but the log was clean.
Rkill was run on 16/09/2011 at 0:54:52.
Operating System: Windows Vista (TM) Home Premium
Processes terminated by Rkill or while it was running:
Rkill completed on 16/09/2011 at 0:54:56.

I should note that i dont get blue screens. I got one 3 days ago when i tried to format that flash drive and one today after the Rkill.

Many pests install as addons to iexplorer and we should see them crash out.

Just a piece of advice. Use another browser other than IE to avoid common infections. It's like that bomber with a big target on it's side. Everyone takes shots at it so use something else to get out of the fire zone.
Bob

I 've never used IE actually so i agree with you 100%. I use firefox for the last 5 years. No idea why i got a prompt that it crashed. Maybe it was simple explorer and in my frustration misread(its 2 in the morning here..).
Anyway Malware Bytes found nothing and Super Antispyware found a whooping 187 tracking cookies, so i guess that is that. I will keep trying to find a solution until i am fed up and do a format.
Thanks again for your help.

Isn't Hitman Pro on that list?

And finally we need to talk about rootkits. Try the Sophos one at least at http://www.sevenforums.com/system-security/27856-question-about-windows-7-x64-rootkits.html#post299061