Microsoft has confirmed reports that Windows 10 has been automatically downloading to users’ systems.
Microsoft said: "For individuals who have chosen to receive automatic updates through Windows Update, we help upgradable devices get ready for Windows 10 by downloading the files they’ll need if they decide to upgrade.
"When the upgrade is ready, the customer will be prompted to install Windows 10 on the device."
The automatic download was taking place even when the owner of the device had no interest in getting the new OS.
Windows 10 includes a combination of old and new features, which includes Start menu, a new browser, Microsoft Edge which replaces Internet Explorer, as well as integration with Cortana.
The download takes place in the background without informing the user and could severely affect the speed of the connection if the user tries to do something else on the system, as it eats up significant chunks of data and disk space.
Some Windows computers and tablets only have 32GB of storage and the update could take up 3.5GB and 6GB of storage, reported an Inquirer reader.
User reports stated that the Windows 10 download occurred on Windows 7, 8 and 8.1 computers with automatic updates turned on.
Though automatic updates are considered good because it installs bug fixes and security updates, an automatic update of a whole OS can be tedious for users on low speed internet.