- How To Wipe Out Windows 7 Computer
- How To Wipe And Reinstall Windows 7 Without Cd
- Erase Hard Drive And Reinstall Windows 10
- Completely Reinstall Windows
Most computers either provide a system restore disc, or have a built-in restore process on the hard drive, to reset the computer back to the original software it came with when purchased. Resetting, or restoring, a computer can help eliminate issues with computer software, including corrupt program files and virus infections. Instructions on how to restore your computer back to the original software are provided below.
How to Wipe a Windows 7/8 Computer Clean without Installation CD The innovations in computer technology are developed at an amazing speed in recent years. New emerged technology makes the user experience more comfortable and increase work efficiency dramatically. Jan 31, 2019 Select the Search option and type reinstall in the Search text field (do not press Enter). Select the Settings option. On the left side of the screen, select Remove everything and reinstall Windows. On the 'Reset your PC' screen, click Next. On Windows Settings pane click 'Update & Security' option. Step 2 Click 'Recovery' option on the left navigation options and then click Get 'Started' button under 'Reset this PC' section. Step 3 Select 'Remove everything' option which removes all of your personal files, apps, and settings and start over.
WarningRestoring your computer will erase all the information on the hard drive and make it like new. Once the steps below have been completed, you will not be able to reverse the steps if you want to recover possible lost data. You should back up any files you do not want to lose before proceeding with the restore process.
TipIf you only want to erase the hard drive on your computer and not restore the original software, see our page on how to format a hard drive, SSD, or USB flash drive.
Erasing the hard drive and reinstalling Windows
Click on a link below for instructions on how to erase the hard drive and reinstall Windows.
TipIf you have an OEM computer (Acer, ASUS, Dell, HP, etc.), you likely have a hidden system recovery partition and don't need to use any CD or DVD to restore your computer. Best yugioh pc game.
Windows 10
- Open the Start menu.
- Select the Settings option (looks like a gear).
- In the Settings window, select the Update & security option.
- Select the Recovery option in the left navigation pane.
- Click the Get Started button in the 'Reset this PC' section.
- Choose either the Keep my files or Remove everything option, depending if you want to preserve your files or delete everything and start over.
- Follow the prompts to begin the recovery process.
Windows will be reset, either keeping your files intact or erasing everything, depending on the option you selected.
Windows 8
- Press the Windows key plus the 'C' key to open the Charms menu.
- Select the Search option and type reinstall in the Search text field (do not press Enter).
- Select the Settings option.
- On the left side of the screen, select Remove everything and reinstall Windows.
- On the 'Reset your PC' screen, click Next.
- On the 'Do you want to fully clean your drive' screen, select Just remove my files to do a quick deletion or select Fully clean the drive to have all files erased.
- On the 'Ready to reset your PC' screen, click Reset.
The hard drive will be erased and Windows 8 will be reinstalled.
Windows 7 and Vista
To restore a Windows 7 or Vista computer, you must have a set of restore discs for the computer or an original Windows 7 or Vista installation disc. If you do not have a set of restore discs, you will need to contact the computer manufacturer to order a new set or restore discs.
NoteBefore following the steps below, make sure the computer is set to boot from the CD-ROM drive.
- Insert the Windows 7/Vista installation CD in the CD-ROM drive and restart the computer.
- When you see the message 'Press any key to boot from CD,' press a key on the keyboard.
- Press the Enter key at the Windows Setup welcome screen.
- When prompted, press any key on your keyboard.
- On the 'Install Windows' page, select your preferred language and other preferences, then click Next.
- On the License Agreement page, accept the terms and agreements and click Next.
- On the Installation Type screen, choose the Custom option.
- Select the Drive Options (advanced) option.
- For Disk 0, delete all partitions. When all partitions have been deleted, you should see a single entry named 'Unallocated space.'
- Click on Disk 0 and select Next.
The Windows installation process will start by creating a new partition, formatting the partition, and installing Windows on the hard drive. The formatting process will erase the hard drive before installing Windows.
Windows XP and 2000
To restore a Windows XP or 2000 computer, you must have a set of restore discs for the computer or an original Windows XP or 2000 installation disc. If you do not have a set of restore discs, you will need to contact the computer manufacturer to order a new set or restore discs.
NoteBefore following the steps below, make sure the computer is set to boot from the CD-ROM drive.
- Insert the Windows XP/2000 installation CD in the CD-ROM drive and restart the computer.
- When you see the message 'Press any key to boot from CD,' press a key on the keyboard.
- Press the Enter key at the Windows XP Setup welcome screen, then press F8 to accept the Terms and Agreements.
- Follow the on-screen instructions to select a hard drive partition to format and install Windows XP on.
- After formatting the hard drive, which will erase all data, click on one of the links below for steps on how to install Windows XP or Windows 2000.
MS-DOS 5.0+, Windows 3.x, 95, 98, ME, and NT 4.0
- Place the bootable diskette or disc inside the computer and reboot to get to the DOS prompt. In some cases, you may need to boot the computer with CD-ROM support or press a key to boot from the disk.
- At the MS-DOS prompt type, format c: /s
How To Wipe Out Windows 7 Computer
If the 'format c: /s' command does not work, you may need to download the format.com file to your boot disk.
- The computer will ask you 'Are you sure you want to erase everything on drive c:'
- If you are ok with doing this, press 'Y' for yes and press Enter.
- After doing this, the computer will begin the formatting process. While the computer is formatting, make sure no errors are encountered.
- Once the format process is completed successfully, at the MS-DOS prompt, type fdisk /mbr and press Enter. After entering this command, it should return you to the MS-DOS prompt with no message. This step is not required, but recommended.
- Once back at the MS-DOS prompt, reboot the computer with the boot disk still inserted and follow the steps below if you want to re-install Windows on the hard drive.
Installing earlier versions of Windows and DOS after formatting drive
How To Wipe And Reinstall Windows 7 Without Cd
- MS-DOS
Windows NT 4.0
Windows NT can be installed different ways. We recommend that Windows NT be installed using the steps below as we feel that these steps by far are the easiest way to install Windows NT 4.0.
First, we recommend that all users wanting to install Windows NT use the /b switch, which allows the users to not need to create the diskettes. We do, however, recommend that the user create the emergency recover diskettes if they have not already been created after the installation of Windows NT.
Finally, before the installation of Windows NT, it is recommended that you run SMARTDRV, which helps the installation of Windows NT run a lot faster.
- Place the CD into the computer.
- Type X: (where x is the CD-ROM drive, often this is D:).
- Once at the appropriate drive, type cd winnt and press Enter to get into the Windows 95 directory.
- Once at X:WINNT> type winnt /b.
- Follow the on-screen instructions to complete the installation.
Windows 98
Windows 95 with CD
- Place the CD into the computer.
- Type X: (where x is the CD-ROM drive, often this is D:).
- Once at the appropriate drive, type cd win95 and press Enter to get into the Windows 95 directory.
- Once at X:WIN95> type setup to begin the installation
- Follow the on-screen instructions to complete the installation.
If you are encountering issues during the setup process, you can add additional switches to the setup command line. These switches is on our Windows 95 setup switches page.
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Windows 95 with floppy diskettes
- Place the first diskette of Windows 95 into the computer.
- At the A:> type setup and press Enter to begin the installation.
- Follow the on-screen instructions to complete the installation.
Windows 3.x
- Place the first diskette of Windows 3.x into the computer.
- At the A:> type setup and press Enter to begin the installation.
- Follow the on-screen instructions to complete the installation.
MS-DOS
- Place the first MS-DOS diskette into the computer.
- At the A:> type setup and press Enter to being the installation.
- Follow the on-screen instructions to complete the installation.
Additional information
- See our format and system recovery definitions for further information and related links.
The Windows 10 upgrade process drags old files, settings, and programs from your previous Windows system to your new one. Microsoft allows you to get an entirely fresh system by performing a clean install.
This is particularly useful if you’ve purchased a new Windows 10 PC and it includes manufacturer-installed bloatware you don’t want. Or, you may need to perform a clean install on a computer without an existing Windows system after installing a new hard drive. Of course, you’ll miss out on the good pre-installed apps, like the free DVD player program that comes with many PCs. However, you can always install VLC to get DVD playback or use one of the more fully featured Windows Media Center alternatives.
RELATED:Windows 10 is Out Today: Should You Upgrade?
Previously, Microsoft forced users to upgrade to Windows 10 before they could start fresh and do a clean install–which was annoyingly complicated and time-consuming. Now, things are much easier, since you can activate Windows 10 with a Windows 7, 8, or 8.1 key.
Option One: Create Installation Media and Install Windows from Scratch
RELATED:Where to Download Windows 10, 8.1, and 7 ISOs Legally
The classic method of performing a clean install is still our go-to option with Windows 10. You just need to download and create installation media, either on a DVD or a flash drive, and install it from there.
Download the Windows 10 media creation tool from Microsoft. This tool will download the correct Windows 10 installation files for your system, and help you create an installation DVD or flash drive. Start it up and select the “Create installation media for another PC” option to create installation media.
Be sure to select the correct type of installation media for the copy of Windows 10 that’s licensed for your PC — Windows 10 Home or Professional. (If “Windows 10” is the only option, you can safely use that and it will detect what version you want.) You should also choose your language and select whether you want the 32-bit or 64-bit version of Windows here. Most people will want the 64-bit version, but you can create installation media that includes both, and the installer will automatically select the most appropriate one when you use it to install Windows on a computer.
Install Windows 10 from the installation media like you would any other operating system. Restart your computer with the USB drive or DVD inserted, and boot from that device. This may require you change a setting in the BIOS, access a boot menu, or use the “Use a device” option in the advanced startup options on a modern Windows 8 or 10 device that includes UEFI firmware instead of the traditional BIOS. Select “Install Now” once the Windows installer starts.
Next, you’ll see the activation screen. What you do here depends on your situation:
- If you’ve never installed and activated Windows 10 on this computer before, you’ll see the activation screen. Enter your Windows 10 key here. If you don’t have one, but you have a valid 7, 8, or 8.1 key, enter it here instead.
- If you’ve ever installed and activated Windows 10 on this computer before, click “I don’t have a product key”. Windows will automatically activate once it’s installed.
The second situation works because of how Windows 10 activates PCs. When you install and activate Windows 10 on a system for the first time, the installer confirms that you have a “genuine Windows” system installed and registers your hardware with Microsoft’s servers. After that, you shouldn’t have to enter that key again on the same PC–Microsoft will recognize your hardware the next time you install Windows 10 on that machine, confirm it’s registered, and automatically activate itself.
Go through the setup process normally until you see the “Which type of installation do you want?” screen. Select the “Custom” option to ensure you’re performing a clean install and not an upgrade install.
Partition your system drive however you like. If you just have a single Windows partition, you can tell the installer to overwrite it. If you have many partitions, you could delete them all and tell Windows 10 to install itself in the unallocated space.
After you log into your new, cleanly installed Windows 10 system, it should automatically activate itself after you connect to the Internet.
To ensure it activated correctly, open the Start menu and click on Settings. click the Update & Security button, and go to the “Activation” tab.
Verify that you see “Windows is activated” here. Also, note the edition of Windows 10 you have installed — either Windows 10 Home or Windows 10 Pro. Most people will receive the Home edition as part of the free upgrade from 7 or 8, but you’ll get Windows 10 Pro if you previously had a Professional edition of Windows 7 or 8 installed.
When we reinstalled Windows 10 Pro on our computer, it activated immediately. But, if Microsoft’s activation servers are overloaded, so it may take some time before your system activates. If it’s not activated, you may see information here that can help you activate.
Some people report having to reboot several times, while others have just waited. The following command can force an activation to occur if it’s not happening automatically after going through the steps above. First, open an Administrator Command Prompt by right-clicking the Start button or pressing Windows Key + X and selecting Command Prompt (Admin). Type the following command and press Enter:
slmgr.vbs /ato
Erase Hard Drive And Reinstall Windows 10
Many people report having to run this command several times. if you see an error message, try rebooting and running it again, wait and run it again, or just wait and let Windows activate automatically. Microsoft’s servers may be overloaded at the moment you’re trying to activate.
Option Two: Perform a Reset and Remove Everything
If you’ve already upgraded to Windows 10 and want a fresh install, there’s an easier method. You can use the Reset feature to reset your Windows 10 system back to a fresh state. If you installed Windows 10 yourself, this should give you a fresh Windows system in no time.
There are a few caveats, however: this method isn’t ideal for every situation. If you purchased a computer that came with Windows 10, for example, this will likely bring back the bloatware that came with your Windows 10 PC. (There’s a way around this, but we’ve yet to test it ourselves.)
In addition, some people have reported that it won’t fix some system corruption issues, in which case you’d want to perform a real clean install using Option One above.
To reset your Windows 10 PC, open the Settings app, select Update & security, select Recovery, and click the “Get started” button under Reset this PC. Select “Remove everything.” This will wipe all your files, so be sure you have backups.
Microsoft’s free upgrade offer depends on your PC’s hardware so it may not activate properly if you’ve swapped out hardware inside your PC. You may need to call Microsoft and complete the phone activation process, explaining what happened, if you changed the PC’s hardware after taking advantage of the offer. The phone support line can give you an activation code that will allow you to activate Windows 10, even if it won’t activate automatically. However, you may have to provide additional information.
Technically, the free Windows 10 upgrade (as well as OEM copies of Windows and pre-installed copies of Windows 10) aren’t supposed to be transferred to a separate PC. But often, the phone activation process will let you do it anyway, so it’s worth a shot.
Image Credit: Brett Morrison on Flickr
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