If you have a retail copy of Windows 7, then you could try to download an ISO directly from Microsoft at the link below. The link is reported to only work in Internet Explorer. Microsoft Software Recovery. You can borrow a friends disk to reinstall, even extract the ISO image file using Img. Burnand then burn a new DVD using Img. Burn at 4x speed, write ISO to 4gb flash stick using Ultra. ISO Software To Create Bootable USB Flash Drive, or for UEFI installs use Option One of UEFI Bootable USB Flash Drive Create in Windows. If you have any doubt about the integrity of the ISO file or are forced to download the ISO from a torrent you can compare the SHA1 signature available freely on the MSDN Downloads page Details links, using a checker like Hash. Tab which adds a HASH calculator to the ISO file Properties tabs. Having these sums match assures ISO integrity and that nothing was added to the file. If your licensed version is unavailable you can unlock all versions in any ISO by running ei. Sources folder on bootable flash stick. Check the HASH first before unlocking the ISO. I would use 6. 4 bit for 4gb or more RAM, 3. RAM. You can slipstream the latest Updates into the installer ISO to save at least an hours Updating after install using Update 7 installation media. However it may take an hour to do this so consider how much you want this. Burn ISO to DVD or to USB flash stick minimum size of 4. GB required using Windows 7 USB DVD Download Toolwhich is sometimes fussy about the ISO, or alternatively to DVD using Img. Burn at 4x speed, to flash stick using Ultra. ISO Software To Create Bootable USB Flash Drive. For UEFI installs format flash stick with Option One of UEFI Bootable USB Flash Drive Create in Windowsmaking sure the settings shown in picture dont jump around after adding the ISO. You have a UEFI install if Disk Management shows an EFI System partition on the hard drive, the BIOS shows UEFI settings and its Boot menu offers to boot the DVD or a UEFI formatted flash stick as an EFI device. Backup your user data. If your files are not organized now is the time to sort them into the User folders for your named User account. Windows 7 How to Drag and Drop to Move a Folder You. Tube. For all browsers other than IE which stores Favorites in the User folder of that name, export your bookmarks to Documents now. Import or export bookmarks Chrome Help. Export Firefox bookmarks to an HTML file to back up or transfer bookmarks Firefox Help. If your email is stored on computer, Google how to back up specific mail and account settings to get solutions like How do I import and export email, contacts, and calendars with Windows Live Mail Microsoft Windows Help. Backup Quickbooks 2. Company files from where you keep them, the default location UserPublicDocuments, or google your versions file location, or run a QB backup to Documents before backing them up. De authorize I Tunes. You can back up your Sticky Notes to keep the one currently on your desktop following Sticky Notes Backup and Restore. Then back up your files externally by dragging or copying your named User account or active User folders to another hard drive, external drive, flash stick or disk. Copying files to an external drive You. Tube. An alternative is to upload files to the cloud using Microsoft One. Drive which offers 1. OutlookLive ID. Install and use the One. Drive app to drag User folders into One. Drive folder, monitor uploading progress by clicking Cloud icon in System Tray on bottom right end of taskbar. Once files are all uploaded, rightclick the Cloud Icon again to choose Settings and Unlink so that any accidental file deletions are not deleted in the Cloud. Step 7 will pick up with reinstalling One. Drive to recover your files. Remember that any accidental deletions always end up in One. Drives as well as your PCs Recycle Bin. For unbootable Windows copy data to another HD or USB device using the Windows 7 disk to Copy Paste in Windows Recovery Console, free Paragon rescue disk, or a Linux boot disk. You can Run and print an audit of hardware and software including installed Product Keys using Belarc Advisor. This audit assures you wont lose any paid software keys like Office. Note that the Windows 7 Product Key found by Belarc or another key finder will be an SLP batch key used at factory, if it has not yet been activated from COA sticker Key used for a Clean Reinstall. This SLP batch key cannot be used for reinstall. Methods for backing up Factory SLP Activation if the COA Product Key is not readable are not supported here but can be found on the web. For unbootable Windows, you can read the installed Product Key and any Office key you dont have backed up using Produ. Key Recover lost product key CD Key of WindowsMS OfficeSQL Server. Save essential system data. If you have a Recovery partition it may not run after clean reinstall. You may want to make your Recovery Disks so you have a path back to factory condition, following the steps given in your PCs setup literature or in the Manual located on the Support Downloads webpage for your model computer. As an alternative to Recovery Disks you can save a Windows 7 Backup Image or more flexible Macrium Image of the entire HD. You can wait until afterward to see if Recovery or Diagnostics Tools partitions will run from boot to decide if you want to delete those partitions and recover the space into C or elsewhere using Step 3 here. This information may be provided for your brand PC in the Special Notes at the end of this tutorial. Write down the Product Key from COA sticker located on back or side of PC tower, bottom or under battery of notebook. Make sure you get the characters correct as this is a main cause of activation failure. You can input or Skip the key during install then afterwards activate at Control Panel System, which may require a quick robocall. But put the key in a safe place so you have it for the life of the PC, which may outlast the stickers readability. The COA sticker looks like this. Manage installed programs. Gather your program installers. For those lacking disks, you may find them on the programs Support Downloads webpage. Favorite pre installed apps may be found on the Downloads webpage for your model computer or manufacturer provided Apps Disk. Others may be found by googling. Some pre installed apps may not be available for clean reinstall more about this for your brand PC in the Special Notes at end. You can download clean, safe copies of your licensed Office version to burn to disk.