Can you feel your PC or Mac running hot? We've found the best ways to check processor temps on your Windows PCs and Macs.

Discover how simple tweaks to your app permissions can significantly extend your phone's battery life. Learn which ...

If your hard drive is getting errors, you can scan for bad sectors and try to fix them with the Check Disk Utility.

"If you are buying a used electric car, how can you check the condition of the battery and how much charge it is holding when it is fully charged?" ...