Clean SSD install (Users folders remain on HDD) - help

My desktop has an old SSD (Win10 boot and applications) and HDD for Users files / data.

I am replacing the old SSD with a new one and will do a clean install of Windows10 Home 64bit and all applications.
I will keep my existing Users files data on the HDD.

2 questions:

1. Is it best to disconnect the HDD while doing the SSD clean install and then reconnecting the HDD once Win10 installation is complete?
2. Regarding Users folder on the HDD - what is the best way to instruct Windows that the Users folders will be on the HDD?

1. during installation / setup (eg. using audit mode, registry editor etc), or
2. after the Windows 10 SSD installation is completed and selecting move the location of the users folders within Windows that have been set up to the HDD?

Thanks

1. Yes
2. Move your Windows 10 libraries to a separate drive or partition | PCWorld

Thanks for the information - What about the location of Outlook .pst and .ost?

Is the best place the SSD or HDD?
(Used to be told they continual read / write will impact the life of the SSD - is that still the case with new ones?

Modern SSDs will out live hard drives

The time I did a clean install and all my user folders were on a separate HDD I shut down my computer and unplugged my HDD and did the clean install. After the install finished I shut down my computer and plugged the HDD back in . After the computer restarted I moved the default user folders location to the HDD. If I remember correctly to be on the safe side I made new folders and after the locations were moved I copied the files to the new folders.

idgat said:

Leave it where ever Windows/Office wants to put/keep it. The disadvantages of tinkering with a program as temperamental as MS Outlook far outweigh any wear-and-tear considerations on an SSD. MS Outlook is one of the last programs I would even consider trying to dictate what the user prefers to do, rather than what Microsoft thinks/demands should be done.

For most of my working career I always used to keep the pst files remote, never had any problem what-so-ever.

The last PC I setup for a family member or friend, Outlook would not function properly without the pst files in the same directory as the Outlook app. I spent a short bit of time researching the issue and apparently in recent times, ms has made changes that no longer allow remote storage.