Question: detailed information for each below
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Answer: (detailed information for each below)

Question: Your complaints are for me signs that you are unhappy with yourself
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Answer: Your complaints are for me signs that you are unhappy with yourself.

Question: He only fell down when a few minutes later his mechanic came into the pit with the motorcycle
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Answer: He only fell down, when a few minutes later his mechanic came into the pit with the motorcycle.

Question: This can be convenient if there is an aggressive antivirus on the computer that prevents the creation of dummydrivers
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Answer:
This can be convenient if there is an aggressive antivirus on the computer that prevents the creation of dummy-drivers.