I want to re-install my Window Vista, I change the operating system of my computer to wimdow 7, now it alway says that i was a victim of counterfake

You need to reinstall the operating system and see if that repairs the problem. I had this same issue about a month ago. What happened, assuming you went through the activation process and I assume you have Windows Vista installed, is the file that has you activation information in it was corrupted and needs to be rebuilt. Use the System Recovery CD's, make sure you save any data you need and have the installation disk for anything you added after the computer was purchased. Microsoft ended up sending me a set of installation disk after they confirmed that I had previously registered the product and had a legal copy.

use windows vista drivers with the same 64 or 32 bit as your system which you can see by right clicking my computer and going to properties
if that still doesnt work it may not be compatible with windows 7 :(

if it runs vista it should be able to run windows 7
http://www.sony-asia.com/support/download/product/vgn-cr357/modelfirst
here is the drivers website

Buy the license first.

Download Key Update Tool, a utility provided by Microsoft to change the key of the Windows version installed.

The download address is http://go.microsoft.com/fwlink/?LinkId=50346&clcid=0x409

Double-click the utility will then check the system files.

Enter the official key and click Next.

Accept the license agreement and click Next.

The key is legalized.

Click Finish.

Windows restarts.

You cannot uninstall an operating system once it's installed. The only way to remove it is to reformat the hard drive (meaning erasing everything) and then installing Vista (if you have the isntallation disk that came with the computer). Now some PC's have a restore button like Lenovo or IBM computers where all you need to do is press that button and then it will reload the operating system and therefore erasing the one that's installed in your computer. For all other computer brands, you would need the Installation disk.
If you have the installation disk, just put the disk inside then restart the computer. As the computer restarts, continuously tap F12 to pull up the boot options menu. Then select " boot to optical/CD/DVD drive" then press enter and from there, just follow the instructions and you're good to go.

Note: You should always ask for the Installation disks for the OS (operating system) whenever you
buy one that came pre-installed with an OS. Always.

Hope this helps.

with this type of problem the best way to solve it is to reformat the operating system and re-install a new operating system window 7, or better still change the operating system to another version like Window Vista or Window Xp service pack 2.

You have 2 options (purchase)
1. upgrade the win vista to win 7 - you need to check the type of win vista that you have if it is 32 or 64 bit or HOME BASIC HOME PREMIUM PROFESSIONAL ULTIMATE
home basic is not win 7 upgrade supported.

2. Win 7 OS full version disk.

Back up all of your files before doing anything on your computer.

If you want screen savers and many more then you have to buy Windows 7 ultimate edition.

you need to boot from windows XP OR wimdows vista depent what operative system you have.

Hello Dr Mallik,

Normally your operating system will find the correct drivers for your hadware, but if have the orginal disc's with the computer system then I suggest you use them to install the drivers onto your computer. Falling that you could always go the internet and search on ask.co.uk to locate drivers for youe operating system.

Please let me know how you get on.

regards,

Philip