Reinstall Win 8.1 over Win 10 in Parallels 11

I made the mistake of upgrading Parallels 11/Windows 8.1 to Windows 10. Now 2007  Outlook/Powerpoint/Excel etc, run *slowly* - I'm talking > 1 minute to load PDF and print.

How do I reinstall Win 8.1 - I have CD/Product Key.
MARSPATHRetired EE/Computers/ITAsked:
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JohnBusiness Consultant (Owner)Commented:
Go to Start, Settings, Update and then click on the Recovery tab. You can roll back to Windows 8.1 within 30 days.

Consider the following:
1. Outlook 2007 is old. I am using Outlook 2016 and it works fine.
2. I use Adobe DC (V2015) and PDF's load fine.

So possibly just newer software in your Windows 10 machine will help.  Also consider a VMware Product instead of Parallels.

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MARSPATHRetired EE/Computers/ITAuthor Commented:
>> roll back... good input; I only really need adequate substitute for MS Publisher (lots of files);  OS X Swift Publisher 4 OK, but does not import Publisher files. Over time, moving to OS X.  Still used to working in Windows...
JohnBusiness Consultant (Owner)Commented:
Thanks for the update and I was happy to help.
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