STEP 1 :
How to force Windows to start downloading the Windows 10 update files
If the Windows 10 install app still says it will “notify you when ready,” you can force Windows 7 or Windows 8 to start downloading the Windows 10 files (thanks to Reddit’s Windows 10 subreddit for helping us figure this out). We’ve laid out the instructions with screenshots to guide you through it.
First, navigate to “C:\Windows\SoftwareDistribution\Download” (you may need to replace C: with a different drive letter if you installed Windows elsewhere) and delete all the files there. This will give Windows Update a clean slate.
Open Windows Update by hitting the Windows key, typing “Windows Update” and clicking on it.
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 (but do not enter yet) “wuauclt.exe /updatenow” — this is the command to force Windows Update to check for updates.
Back in the Windows Update window, click “Check for updates” on the left hand side. It should 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. Before you actually install it though, back everything up and make sure you’re ready.
LINK : Windows 10 Upgrade Error
STEP 2 :
Force Windows 7/8/8.1 to Install Windows 10
Microsofts stealthy download uses a secret folder – C:\$windows.~BT OR C:\$windows.~WS OR BOTH– and it can be found by opening File Explorer and going to: Organize > Folder Options > View > Show hidden files, folders, and drives.
Windows 10 is a significant download of almost 6 GB which means you can right click on the folder to see how far it has progressed.
FIND OUT setup.exe IN THIS FOLDER
ETC PATH IS :
WAIT FOR READY TO INSTALL SCREEN & CLICK Next
THEN CLICK Install.
NOW, WINDOWS 10 INSTALLATION STARTED
WINDOWS 10 INSTALLED