Hi, I had Windows 7 installed on my laptop. But I accidentally pressed the button “replace windows” when installing Windows 8. I want to recover my old OS but I want to keep the new one as well. (As two OSs). How is this possible?

What is normalization and how are use normalization in database table?

When is apple going to launch its new OS named lion?

what is the difference between classic bijoy and unicode bijoy?

which is used better?and why?

which is more easy?

Hello. I just installed a new trackball on my Windows Vista portable computer but since then, there seems to be an issue between the trackball and the touchpad. They are having conflicts and I want to know which tool is best to use and how I can resolve this issue. Thanks.

I purchased a new iPad2 2weeks ago.

I have a problem using its touch screen space bar.

I have to tap is twice or thrice or even harder for it to function.

How can I fix this problem? 

Hi,

I accidentally erased an important email from a good client. Is there any way that I could retrieve it?

 I recently purchase a Toshiba laptop, I have been using it for almost a month now for work. Just recently while I was using it my laptop’s screen went black and there was a long beeping sound coming from it, seconds after it came back and then went black again bearing a message saying “no bootable device”. Can anyone help me deal with this issue or should I bring this back to the store where I purchased it since, it is still under warranty?

 I have a Youwave application installed on my android phone, but the problem is, when I tried to open it I got an error message saying “Sorry! The application Calendar storage (process.com.whatsapp) has stopped unexpectedly. Please try again.” please help me fix this problem.

I accidentally changed my Google chrome language into Chinese. Now, I could no longer identify the buttons that I need to click to bring it back to its original setting. Please help me deal with this problem.