After three years it is very probable that your hard disk is too small. This would be a good opportunity to buy a new one. I guess for 100 or 120 dollars the boys in the corner will sell you a 10 Gb disk, AND install your Win95 on it for no charge (provided you give them all the original diskettes or CDs that came along with your video card, CD Rom, modem and sound card). Once you have the new HD running, you may reformat your old disk happily with no work-hour on your part.

Another condition: that the boys in the corner are trusty.

Un abrazo - Andrés