No wank material is bad Makes more visits happen

From grinding noise sounds like hard drive blew , as its nearly the only moving part to make such a sound ,

You can google make and model find out what type of hard drive ide or sata , both will be 2.5 inch

Look on adverts for second hand one depending on size you may get one from 20 euro up ,

YouTube time and patience will show you how to remove and install new one

A lot cheaper than new PCs ,

Although I'm concerned about sparks I've worked with computers for years never heard of sparks come from PC

Best of luck ,

If you do go the route of looking for a PCs send me a pm I'll point you in right direction