get a warning message that it encountered a problem indicating physical
corruption on the disk surface. I run System File Checker and I got news
that File setupx.dll may be corrupted. After this I noticed many Icons look
different (blank if with fuzzy color dots). The driver update appears to
have been installed but it is still there to be downloaded again. Comp and
internet runs ok but what can I make out of this mess? How can I locate the
downloaded driver? What steps should I take to fix this problem? Thanks very
much.

go to the website of your harddrives mfg and see if they have a diagnostic
utility

if it shows the drive as being defective...it's best to replace it before it
fails entirely