Once you have signed up for Windows 10, it’s anybody’s guess when you will receive it. Microsoft plans to release Windows 10 in waves. That means even if your computer is ready, you won’t necessarily be able to download Windows 10 right away.
You can however force Windows 7 or Windows 8 to start downloading the Windows 10 files – here’s how.
Open Windows Explorer and navigate to “C:WindowsSoftwareDistributionDownload” (if windows isn’t on the C: drive, alter to the appropriate drive letter ) and delete all the files there.
Open Windows Update in control panel – do not hit check for updates yet.
Open up the command prompt by hitting the Windows key and typing in cmd. Don’t hit enter. Right click and choose “Run as administrator.”
Type the following text , but don’t press enter yet “wuauclt.exe /updatenow” — this will force Windows Update to check for updates.
Go back in the Windows Update window, and click “Check for updates” on the left hand side. It will say “Checking for updates…”
While this is happening, switch back to the command prompt and enter the command you already typed in.
You should now see Windows Update say that it is downloading Windows 10.