Is there still a risk to my system from downloading and installing hotfixes?
No. As soon as Microsoft discovered this problem, we began to evaluate its scope and take corrective action. As of December 19, 2000, Microsoft updated all of the Windows 2000 post Service Pack 1 hotfixes on its web sites to include valid catalogs. Installing any of those hotfixes will make you immune from new problems. However, if Windows File Protection was triggered while an incorrect catalog was present on your system, some of the hotfixes that you installed previously may have been removed.