Shall I have to provide with passwords of my laptop to the technician?
This will depend on the problem you are experiencing. In most cases, we can use our own operating systems to test your laptop. Once the job is completed, the technician will securely destroy your passwords so that you can set of your own ones.
Will the technician misuse the data in my defective laptop?
You have to check the reputation of a service provider before giving him your laptop. If he doesn’t have any history in this regard then you should warn him about not using images or videos or data from the laptop for his own purpose and restrict him to not save the data anywhere else.
Shall I have to pay to the technician even I didn’t get repair of laptop?
You have to confirm about this with the technician regarding the payment of service charges even after not getting better output.