Installing windows 7 on infected computer

On the next screen, you should see a list of the partitions defined on your hard drive s. If you have more than one physical hard drive in the computer, they will be displayed here as separate disks Disk 0 , Disk 1 , etc.

Only follow these instructions for the disk that contains your existing Windows installation, and leave any others alone. If you are unsure which disk contains your Windows installation, ask for assistance before continuing.

To proceed, click Drive options advanced to access the options, and then, one by one, select each partition on the desired disk and click Delete. You will be prompted to confirm each deletion. After deleting all partitions, you should see only "Unallocated Space". Select Unallocated Space , and then click Next to continue the installation. Note: Windows 7 will create a new partition and start expanding and installing files to your hard drive. This process will take several minutes, during which your computer will restart multiple times.

Your computer will need to reboot from the hard drive during this process. Sorry this didn't help. Thanks for your feedback. Threats include any threat of suicide, violence, or harm to another. Any content of an adult theme or inappropriate to a community web site. Any image, link, or discussion of nudity.

Any behavior that is insulting, rude, vulgar, desecrating, or showing disrespect. Any behavior that appears to violate End user license agreements, including providing product keys or links to pirated software. Unsolicited bulk mail or bulk advertising.

Any link to or advocacy of virus, spyware, malware, or phishing sites. Any other inappropriate content or behavior as defined by the Terms of Use or Code of Conduct. Any image, link, or discussion related to child pornography, child nudity, or other child abuse or exploitation. You can back up for your files using another hard drive, an external hard drive, a flash drive, or a cloud service such as Google Drive or Dropbox.

Scan your computer for malware. Malware can prevent Windows from installing correctly. Disable or uninstall any antivirus software because they may interfere with the Windows installation. Uninstall some unnecessary programs to speed up the upgrade.

You can install them after Windows 7 has finished. Update Windows with Windows Update. Delete some unnecessary files to speed up the upgrade. Back up your hard drive in case the installation fails and you lose your files. Insert your Windows 7 installation disc. Click the Windows Start menu.

By default, it's the icon with the Windows logo in the lower-left corner. Alternatively, you can boot your computer from the disc as outlined in Method 1 and select Update from the installation screen. Click My Computer. This is displays all drives on your computer. If you are using a newer version of Windows, click Windows Explorer. It has an icon that resembles a folder with a blue clip. Then click This PC or your computer name. Double-click the disc drive with the installation disk.

This displays the contents of the disk. Allow Setup to start. Click Setup. This launches the Windows 7 installation program. Click Install Now.

Decide whether to install updates for Windows Setup. The updates are intended to fix known problems with Windows Setup and installing updates makes your installation smoother and more stable. To get updates, click Go Online to get the latest updates for installation recommended. To skip updates, click Do not get the latest updates for installation. Read over the Microsoft Software License Terms, and click the checkbox next to "I accept the license terms".

Then click Next. Select the Upgrade option. It's the first option in the menu. This checks your compatibility and installs Windows 7. Method 3. Connect a USB flash drive to your computer. The USB flash drive needs to have a minimum of 4 gigabytes of disc space.

Move any personal files off of the drive. Make sure the flash drive has no other files on it before copying the Windows ISO file. It is also known as a disk image. Note: This download may take a while, depending on your internet speed.

A list of download links is available here. If the link to the website does not work, click here to download a list of the links. Double-click the "en-US. Then click Install to install the program. Follow the on-screen instructions in the Installation Wizard. Select the Windows 7 ISO file. Then click Next to continue. Click USB device. It's the blue button in the lower-right corner the "Choose Media type:" screen. Be aware that this will erase all files on the flash drive. Depending on the make and model of your computer, press one of these buttons immediately after you power on your computer will enter the system BIOS.

Although this method may vary among computers, the boot options menu is typically a menu of movable device names where you should set your USB drive as the first boot device. Start your computer from the USB drive. When the computer starts, press a key if you are asked if you would like to boot from the USB drive by pressing any key. After you choose to start from the USB drive.

Then click Next in the lower-right corner. Select the ' Custom installation. Decide on which hard drive and partition you want to install Windows on. A hard drive is a physical part of your computer that stores data, and partitions "divide" hard drives into separate parts. If the hard drive has data on it, delete the data off of it, or format it Be aware that this will permanently erase all data from the disk. Click Format from Drive options. Remove the USB drive.

Open the computer, remove the drive, and connect it to another PC. Whatever the operating system on your other computer — Windows, Linux, or even Mac OS X — you can install antivirus software and use it to scan the secondary drive for malware. All these methods allow you to gain the upper hand over malware running on your PC. Rather than fighting the malware on its own terms, this method allows you to freeze everything happening on your main operating system and carefully clean it up from the outside.

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