Read all the way through this before you start, and get it firmly in your mind.
If the 160 HD Clone was from that same Windows disk, using the disk to attempt a repair is worth the time... there is simply no way to predict whether the repair will be effective, but I doubt that it would do any more harm... assuming your key files are backed up to the 80 GB drive.
To repair install WXP. print this, or find a better description online as to how to do it. There are several things to keep straight unless you have a better memory than do I.
Be sure your boot order in the BIOS is correct for booting to the Windows disk.
If you used an early version of Windows XP, and then installed Service Pack 1 or 2 later over that original install, the Service Pack should be removed. You want the disk to be as close to the current install disk as possible. Boot to the CD as though it was to be a new install.
You should then see a <welcome to setup> screen, where you will find these choices on one of the first three screens:
This portion of the Setup program prepares Microsoft
Windows XP to run on your computer:
To setup Windows XP now, press Enter.
To repair a Windows XP installation using Recovery Console, press R.
To quit Setup without installing Windows XP, press F3
Press <ENTER> to start the Windows Setup.
Caution: Do Not choose “To repair a Windows XP Installation using the Recovery Console, Press R” as that will produce unwanted time and trouble unless you have ample experience running Repair Console repairs. The < R > you need is on the next screen page as in the second paragraph below:
Accept the License Agreement and Windows will search for existing Windows installations.
Select the XP installation you want to repair from the list and at this time press R to start the repair. If Repair is not one of the options, stop running the setup, wait for the next screen or for the first screen that offers, Press R for Repair.
Setup will copy the necessary files to the hard drive and reboot. Do not depress any key to boot from the CD when that message appears. Setup will continue as if it were doing a clean install, but your applications and settings will remain intact. It could take an hour, but at least a half hour.
Do not immediately activate over the internet when asked. Enable the XP Firewall before connecting to the internet. You can activate after the firewall is enabled. Control Panel - Network Connections. Right click the connection you use, Properties and there is a check box on the Advanced page.
Reapply updates and install Service Packs applied since initial Windows XP installation. Please note that a Repair Install using an Original pre service pack 1 or 2 XP CD used as the install media will likely remove SP1/SP2 respectively and service packs plus updates issued after the service packs will need to be reapplied.
What this will usually do for you is correct any problems with the Windows Install that may be affecting your Windows install, particularly the hard ware issues with USB. Because, normally, USB and 1394 drivers are installed as part of Windows.
You can look in the Device Manager <Start -> Settings -> Control Panel -> System -> Hardware -> Device Manager -> to see what devices have yellow or red flags. Those flags mean those devices are not installed properly or perhaps are defective.
After the Repair Install, you need to reinstall all the Device Drives. If it runs, then you will need to install about 148 Microsoft Updates.
The only advantage of the Repair Install is that it will repair all the Windows part of the install, but will not normally touch any of your programs, data, documents, photos, or installs of other software.