Dear Customer,
Thanks for your posted, Based on your question "Is it taking up space on my hard drive and slowing down my start-up and internet explorer launch?"
Q1: Is it taking up space on my hard drive? Ans1: Yes, it will taking up space on your hard drive about 30~50MB that but according to your OS.
Q2: Is it slowing down my start-up and internet explorer launch?
Ans2: No, It isn't. Fix it Center tool is not affect the IE's performance.
If I misunderstood you,please let me know. Thanks.
Please Mark as Answered
If this is helpful Or Un-Mark as Answered if it is not helpful.
Best Regards,
Yan Jun