Fix "A CD/DVD drive device driver is missing" during Windows 7 Installation

One of the classic error I always get since windows 7 release is "A CD/DVD drive device driver is missing". If you have a driver f...

How to Enable AHCI Mode After Installing Windows

After Windows installation, you can't easily enable AHCI mode from IDE mode. You will notice that your computer will not boot. You will ...

Downgrade Windows 8 based PC to Windows 7

Most Windows 8 base PC such as HP Envy 15 notebook require BIOS/UEFI setup before you can downgrade it to Windows 7. Before we start I would...