I followed the remove junk files steps here:
Clean out junk files in Windows 7, 8.1, and 10 | The Download Blog - CNET Download.com
Plus then run CCCleaner and elected to remove
Internet...

There are no junk files - fully cleaned out everything yesterday using cccleaner

The 120GB drive was considered to have too small unused space .... advised windows needs at least 30GB spare ........

OK that worked ... after a reboot.

All I have now is one remaining issue with HP printer install ... I'll detail in case anybody has any ideas
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Initially could not get printer working as...

Didn't make any difference.
For example I went to: %ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs
saw an entry for EaseUS partition master - deleted it
Checked:...

I originally relocated my profiles ... as per the instruction & advice here:
User Profile - Change Default Location - Windows 7 Help Forums

This was great until I had an OS issue and the MS...

All software has been reinstalled already. Even though it was a new HDD it picked up license info OK from C: ....
The exceptions (and issue) are the programs I'm not reinstalling.

The advice I had was to keep one drive for OS only ..
This is to prevent the ever increasing size of the Space.
In my case also means C is an SSD
When larger SSDs come down in price maybe I'll...

well whatever CCleaner is ... it didn't make any difference. Registry tool did remove a list of unused DLLS's, but I still have several 'invalid ' folders showing.

I managed to clear some by...

I had been a regular user of CCleanaer (even before the rename) however had a few issues where it did not detect malware but other progs did .... Superanti-spyware and Malwarebytes
However I will...

I'll give it a try

I had OS on C:\ and progams on D:\

The D:\ crashed and has had to be replaced.

Even though I have gone to start>settings > apps .... I cannot install the old programs
I tried IObit...