When I run the disc optimixer it defragments both my C and D drives to 0-1%. However my system reserve drives is 41% defragmented and the disc optimizer leaves it that way. There is not an error message. I read online that the system reserve drive does not really need to be defragmented. I would appreciate an answer. In closing my computer has no issues and runs great. Occasionally I will get a high handles alert. Thanks for your time and input.