Installing Updates to Vista and Turning Features on/off

I am having the same problem as many others. I have run CHKDSK on C:, and
repaired offending files; I have used the command prompt to enter the
suggested fix, i.e. the "fsutil resource setautoreset true c:\" then reboot.
I still can not install any updates, nor can I turn on/off any features.

Another problem:
Originally I loaded the 32 bit version of Vista Business. The computer
worked OK but it won't restart without an interrupt (front panel switch). It
just beeps with a POST failure. Initially when this happened, I forced a
powerdown and this corrupted one or more files, which Vista "repaired." After
the repair, it takes 3+ minutes for Vista boot. Before the repair, it was
fairly fast (~20 seconds).

With a clean install, I installed the 64 bit version of Vista Business. The
start/stop issues carried over to the 64 bit version, and I now lack the
ability to turn on/off Vista features and can not install any updates.

Given the failure of the command prompt fsutil resource reset, what else can
I do?
Thanks.