For complete peace of mind your PC will have an amazing bootable backup drive solution which will save you time and money in the event of various computer issues.
Every week a copy of your main 'C drive' is taken and stored on a completely separate internal hard drive. If your main C drive fails at any time you can simply boot from this backup drive and be instantly back up and running.
This solution also allows you to work around virus issues or any other system wide corruption!