Unable to format hard drive. «The Selected Disk is of the GPT Partition Style»

How many of you have tried to make a full format to a hard drive and you got the message «The Selected Disk is of the GPT Partition Style»?
Here is the solution:

1 On the partition selection screen, press shift + F10 to enter command prompt!

2 Type DISKPART

3 Select the disk you desire (probably number 0) by typing «select disk 0» (without quotes)

4 Type «clean»

5 Type «convert mbr»

Done. Exit command prompt and refresh your disk list.

Now NORMALLY you should be able to choose your disk to install your new OS!

Fix the black screen problem on acer aspire laptop!

Here's a cool and easy way to fix (not permanently) your laptop's black screen!

Unable to access rom drive or USB flash for format!

 Many people who own laptops or desktops with windows 8.1 already installed were unable to install windows 7 because they couldn’t access either cd rom or usb flash to begin format and installation procedure. That is because win 8 have secure boot enabled in BIOS by factory settings.All you need to do is to disable secure boot from BIOS, choose the device you wish to boot from (CD ROM or USB disk) and restart computer with win 7 cd already inserted or usb flash plugged in. Now you can access the win 7 installation procedure!
 Warning! Do not mess around with the BIOS settings if you are not sure how to deal with it. One false setting could crash the system and there is no fix for it!

Connect an external hdd with an esata cable.

If you wanna connect an external hdd with a esata cable (picture) make sure you plug it and activate it when computer is shut down and then open computer. Otherwise, when logged in and then activate the hdd, windows will not detect it.

How to speed up windows 7.

Here's a cool tip to speed up your windows 7. Plug a usb flash drive in one usb port, go to "My computer", right click the flash drive, select "properties" and choose the "ready boost" tab. Choose the "Use this device" option and make sure to select 4094 MB. Press ok and restart computer with the flash drive on. You will notice the difference of the speed especially if your installed RAM is 1Gb or less. More cool speed up options will be posted soon!