Secondary IDE controller (dual fifo), PCI Universal Serial Bus

hi,
I am getting this message
Secondary IDE controller (dual fifo)
hdc
This Device Has a Problem: Code=29 (0x1D)
This device has been disabled in the hardware. In order to use
this device,
you must re-enable the hardware. See your hardware documentation for
details.
and

PCI Universal Serial Bus
Unknown
This Device Has a Problem: Code=28 (0x1C)
The drivers for this device are not installed correctly. To
install the driver
for this device, click the Driver tab, and then click Update Driver.

I dont know much about computer. Can anybody give me suggesstion step
by step that what should I do? I tried several times to install driver
for PUSB but failed.Thanx in advance, I am running windows 98, Pentium
4, 1.8 MHZ.

 

Boot into DOS -- hold the CTRL key at bootup until the
DOS menu appears. Choose 'Command Prompt Only'.
At the DOS prompt [ C:> ] type:

scanreg /restore

Choose a registry dated *before* you had this problem.