upgrade w7 windows10 - 8004000 8020000 error code

Original title: Mr.Meyer

When the download and upgrade w7 windows10 it fails permanently 8004000 8020000 error code

Try to upgrade manually:

Task of pre-required

When you make significant changes to your computer for example updated operating system, you must always back up. See the links to resources on the backup by clicking the link for each version of Windows you are using: Windows XP, Windows Vista, Windows 7, Windows 8/8.1

then

then

  • Turn off (preferably uninstall) your Antivirus utility before you perform the upgrade.
  • Reboot several times, and then try again.
  • Disable the general USB peripherals (for example - smart card reader).
  • If you are using a SCSI drive, make sure you have the drivers available for your storage on a thumdrive device and it is connected. During the installation of Windows 10, click on the advanced custom Option and use the command load driver to load the driver for the SCSI drive. If this does not work and the installer still fails, consider switching to an IDE based hard drive.
  • Perform a clean boot, restart, and then try again.
  • If you upgrade to the. ISO file, disconnect from the Internet during the installation, if you are connected in LAN (Ethernet) or wireless, disable both, then try to install.
  • If you are updated through Windows Update, when download reaches 100% disconnect from the LAN (Ethernet) Internet or Wi - Fi, then proceed with the installation.
  • If this does not work, try using the. ISO file to upgrade if possible.
  • If you are connected to a domain, go to a local account.
  • If you have an external equipment, attached to the machine, unplug them (example, game controllers, USB sticks, external hard drive, printers, peripherals not essential).

Tags: Windows

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