OMG!!! Turn off that PC before you catch fire!!! You should NEVER have temps for a CPU above 80c! You literally are melting down the CPU, never mind the HDD, PSU, even GPU, to the point you can literally catch fire!.
You need to clean out the PC from dust (blown air), use a brush on all vents, fants, etc. then start up, download then run SPECCY, and give us your SPECs which will show the idle temps as well.
IMHO if this has been happening more then a 'couple minutes' you basically trashed your components.