When removing the Internet Avast security 5.0 (version evaluation), already does not happen the problem.
It is alone with the Internet security 5, with the avast pro 5.0 the same thing does not happen.
Also it happens when you check the disc with tuneup 2010. Removing the avast already does not exist the problem.
Also the same thing happens with checking mistake of (intensive) disc of the XP.
"chkdsk / x" It(He,She) is in order that the disc dismounts and in the restart it(he,she) checks it, is for NTFS.
The format of my disc is NTFS.
If someone can check his your disc as I explain, Under his proper risk
I have tried in two PCs and the same thing happens.