By 'large memory' do you mean large drive. If so, you might consider partitioning the drive, then it won't take so long to scan. I suggest you run in 'safe mode' so that nothing is running that doesn't need too. It will still take a while though.
This thread is now locked and can not be replied to.
How to get Windows 10 for free | How to install Windows 10: There is still a way to avoid paying…
1995-2015: How technology has changed the world in 20 years
Alex Chinneck’s giant ice cube Christmas tree at Kings Cross