How to "Delete administrator Password" without any software

Method 1

Boot up with DOS and delete the sam.exe and sam.log files from Windows\system32\config in your hard drive. Now when you boot up in NT the password on your built-in administrator account which will be blank (i.e No password). This solution works only if your hard drive is FAT kind.

Boost Your Wi-Fi Signal Without Software

Improving your Wi-Fi signal is not this complicated.There's all sorts of stuff you can do to your Wi-Fi router's software to improve its signal strength. I think that's a pain in the ass. Let's do it in less than a minute and without any keyboard-touching.

Placement

Radio waves fall down and laterally. That means getting your router as high as possible: on a piece of furniture or the highest floor possible. If you're not trying to reach an upper floor at all, hang the router high and upsidedown.

Put it in a central location.