Windows 10: An important question before clean install

I'm planning on doing clean install of Windows 10 for my PC this weekend. Currently I'm also using W10. I am going to install onto the same hard drive (SSD) as it is currently installed. It will put the older version of W10 into a Windows.old folder which I'm going to back it up to an external hard drive if I ever going to need files from it. Now after that I'll launch a Disk Clean-up to remove previous Windows installations (aka Windows.old) and then I'll remove the older version of W10 from dual boot (if it will be there ofcourse). My question is: are my previously mentioned steps enough to uninstall my older version of W10 and replace it with the new one or will I still have to do something?

:)

 

Important question before buying N9

Important thing I missed to mention:



Disconnect from internet when you are installing the old version 3.0.0.290
[/i]

Otherwise you will not be able to install this version.



I did it in this way and I am syncing now calendar and contacts with outlook using 3.2.98 which I have installed afterwards without deinstaling the old version.



vision

 

Important question before buying N9

Trying to install old Ovi Suite -- it sayd mandatory updates shall be downloaded to continue installation process -- I guess this will bering Ovi Suite to latest version and no support of N9, How did you handle this?

 

Windows will not "uninstall" itself. A clean install will wipe everything from the HDD so be sure to have copied anything you don't want to lose to a different drive. You may also need to save the drivers for devices if you installed any hardware after the initial install of Win10, may have them in the Downloads Folder, that's where mine are.

 

Ok I'll make sure to back those up aswell. So if a clean install wipes everything I will not need to do any other actions to make sure the old version of W10 is out of my PC after I get rid of the Windows.old folder?

 

Right. That's the way I do it.

 

Gotcha. Thank You for Your time!

 

Just to be clear - there won't be a Windows.old folder to get rid of. To do a clean install you erase the entire hard drive before you install Windows 10 to it.

 

Ok got it. But just out of curiosity. I've already had experience with this back when I was using Windows 7. Does overwritting the current version of Windows and later on deletting the Windows.old folder remove the the previous installation of Windows which you had?

 

Well, on that partition, yes. But there will likely be remnants of the old OS in other partitions, such as recovery partitions.

 

Can these leftovers damage a PC in any way?

 

No, just take up space on the hard drive.

 

Ok got it. Thanks!