you can try a repair if you have the cd.
Have you had our malware experts look at a log.
Solution: You can use the Windows 2000 repair feature to fix these problems.
The following steps provide a general overview of the repair process:
Start your computer from the Windows 2000 Setup disks or the CD.
Choose the repair option during setup.
After Setup finishes copying files from the last Setup disk, you begin the text-based Windows 2000 installation process. During this process, you can choose whether you want to install a fresh version of Windows 2000, or whether you want to repair or recover an existing installation of Windows 2000. To repair a damaged or corrupted system, you should select the repair option.
Choose the type of repair.
You can choose either the fast repair option, which is the easiest and does not require any user interaction, or you can choose the manual repair option, which requires user interaction. The fast repair option attempts to repair problems related to the registry, system files, the partition boot sector on your boot volume, and your startup environment (if you have a dual-boot or multiple-boot system). Using the manual repair option, you can choose whether you want to repair system files, partition boot sector problems, and startup environment problems, but you cannot repair problems with your registry. For example, using the manual repair option, you can attempt to repair your system files if you know that your partition boot sector and your startup environment are both intact.
Start the repair process.
To start the repair process, you need the 1.44-megabyte (MB) ERD that you created in the Backup utility, and the original Windows 2000 installation CD. During the repair process, missing or corrupted files are replaced with files either from the Windows 2000 CD or the systemroot\repair directory, which means any changes you made to the system after you originally installed Windows 2000 or since you last created an ERD could be lost.
Restart your computer.
If the repair process was successful, you are prompted to restart your computer. You should then have a working system.