Yes, it does.
I'm not sure how your computer works but I had the same problem my laptop came with windows vista but recently I had to restart from scratch I still had windows vista.you should still have vista
If you mean redo it with windows XP or w/e operation system you had you need to make a recovery disk... If you don't know how to do that then just get a windows XP or windows Vista CD depending on what was previously on it before. Pop in the disk and restart the computer then follow the instructions. This will erase everything that is on it and install a fresh copy of windows xp/vista. Now if you want to delete your hard drive were nothing can be found on it and it will destroy your hard drive. There are special CD's you buy that will delete everything. This will make it were the hard drive cannot be used anymore :)
The reason being, if you want to remove Windows Vista, you will have to either (a) Re-format the hard drive: which erases EVERYTHING ON THE DISK! or (b) perform a downgrade installation to Windows XP Pro or Windows 2000 Pro. If you reformat the disk you erase everything, including the operating system (which is Vista in this case). Since your computer has no operating system it is no longer able to function (you can still turn it on, but you get a disk boot error). You will need to re-install a different Operating System, or Vista again if you wish to do so, in order to have the computer function properly.
Your memory: Nothing, depending on the capacity of your computer's RAM, Vista may affect it, then again, many operating systems do, however, Vista has been criticized for it's high usage of memory.Your Files: Depending on the way you install the operating system, if you upgrade from XP to Vista (Vista only supports XP=>Vista upgrades), your files will be perfectly fine, if you allow the installation to erase the contents of the hard drive and partition you install it to, your files will be lost.If you'd like to see if your computer can handle vista, see related links.
try install windows xp service pack 2 then install the sims 3 but there might be a chance it will erase the data of the old windows xp if all sorry if this doesn't work.
No. First of all, not everyone would consider Windows an "upgrade." Secondly, Windows does not support migrating a Windows system, so you have to erase the hard drive and do a clean install.
Viruses can be harmful in many different ways. There are viruses which can erase all data on your computer, copy it and send it to someone, install programs which can record your usernames and passwords and many more. I recommend you get a Virus Protection Software if you want to stay safe. I recommend Malwarebytes which is available for Windows, MacOS and Android OS.
malwarebytes.org
If the installation is Windows, then it makes no difference, the OS will simply adapt the installation as long as it is a clean install from the install disk, however the drive can not simply be swapped out and booted, as some anti-piracy components of Windows will erase the installation, along with the fact that the drive will very likely not fit.
It is not possible to install any Operating System next to another on the same partition. To dual-boot Windows 7 and Windows XP, first install Windows 7, and while in the partition manager, delete all partitions and create one for Windows 7 and one for Windows XP. Then install Windows 7 to it's partition. Then install XP to it's partition. You should now be able to boot either Operating System. Note: You must install XP after Windows 7 as the Windows 7 installation wizard would want to upgrade XP. WARNING: This will erase all of the data on your hard drive. Be sure to back up all of your files before installing anything.
Download and boot from the Ultimate Boot CD available from http://www.ultimatebootcd.com/ Use a disk utility to erase the partition and Windows will do the rest when you install it. thank you pretty good windows xp boot disk
it really depends on which one. like ones that make you download/install their programs. But if you can you can use a virus scan daily.