Hi:  In the past, often, my puter said that I shut

    down improperly even though I didn't. Not a big

    problem as only took 20-30 seconds for the C

    drive scan. A few weeks ago I downloaded windows

    updates because of the new virus. Now, after the

    C scan it enters into "scanning all the clusters".

    This takes 2-3 hours.  Now happens every start-up.

    The scans never find anything wrong or damaged.

    How do I stop it from doing this?

          Thank you,  Chuck