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Yes you will... Formatting the hard-drive will erase everything that's stored on it - including all programs and personal data. To re-install Windows 7, you will need the activation key supplied in the software's packaging or from the sticker located on the computer's case.

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9y ago

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Do you have to reinstall Windows when adding a new hard drive?

You do not have to reinstall Windows if you wish to add an additional drive. If you want to be able to boot from that drive, or to replace your current boot drive, you will need to install Windows on it.


Windows XP operating system has a virus and want clean it up do you format your hard disk?

You'll need to boot from the installation CD then format the C drive from there. Note: you'll loose everything on the disk if you do that. ---- As long as you have an operating system disk you can also go to run: cmd: then type format (drive:) then push enter and when it asks you to deletey your internal memory then hit Y for yes or N for no. Remember this will delete everything on your hard drive so you would have to reinstall windows.


I have the Windows Vista upgrade disc and I just bought a new hard drive. Do I need to reinstall Windows Xp and Windows Vista again or is there an eaiser way to do it?

It depends on what for you are going to use the hard drive. If you want to use it like the system drive, then the answer is Yes, you have to reinstall everything. If you want to use it just to keep data on it, then the answer is No. Just connect to your PC and format it. You have to turn off the computer off before you will start the procedure.


If you reinstall windows does it erase your hard drive?

Reinstalling Windows will not erase the hard drive unless you tell it to reformat the hard drive before reinstalling the operating system. You will have to reinstall all your programs that were installed prior to reinstall but all your saved files will still be there.


How do you format drive c when drive can't be locked?

you can't format the drive that you're running windows from while in windows. use the setup disk to run a recovery console and you should be able to format it from there using format c:


How do I format a hard drive and reinstall windows when I have forgotten the administrators password I can't use a command prompt or the disc or delete programme files because I dont have the priviges?

If I were going to format and could'nt i would just buy a larger hard drive and replace the old one


How do you format a c drive on a crashed computer?

Run the Windows installation and format it from there.


Will Windows 7 be removed if you format the hard drive?

If you format a hard drive that contains Windows, it will be removed. Formatting a drive gets rid of all of the information on it. However, you can right-click your C:/ drive and click format, but it will not allow you if your current OS is running on that drive.


How do you format win 7 pro and reinstall os?

You can re-install Windows 7 (or a different OS over Windows 7) by mounting an ISO disc file to your ROM drive or by placing the Windows 7 (or a different OS) installation disc into your physical ROM drive. When you install Windows over Windows it will create a Windows.old folder in your C drive directory which contains all of your old files from your previous installation.


RadioShack you are wondering if it is possible to downgrade from windows vista basic edition to windows XP on your present computer?

You can not simply downgrade to Windows XP from Windows Vista. If you want to completely remove Windows Vista in favor of XP, you will have to format the hard drive and reinstall the OS from scratch. Windows XP will not install on top of an existing Vista installation.


How can you erase everything on your computer and reload Windows XP?

I use my Compaq computer 'start up' discs to erase the hard drive, this is called 'formating'. Then I reinstall Windows XP and whatever I want on my computer. Don :) I agree with Don. Reformatting wipes the drive clean, and you get to start over.


Can you reinstall Windows XP without reformatting any extra partitions on that drive?

Yes.