If you are someone who constantly forgets to lock his Windows PC whenever he moves away from it, then this tip can save you a lot of hassle. When turned on, this feature will automatically lock your system whenever you walk away from your work-desk. Basically, the feature uses Bluetooth connection with your phone to determine if you are near it or not. Once your phone is out of the range when you walk away, your system will automatically lock down. You can enable this feature by going to Settings -> Accounts -> Sign-in Option and turning on the “Dynamic Lock” feature. Once you enable this feature, you will have to pair your smartphone to your Windows PC if you have not already done so. I really love this feature and I cannot explain how many times it has saved me a trip back to my PC just to lock it down. If you are half as forgetful as I am, you should definitely enable this feature to save your information from prying eyes.