Too slow when opening books and loading chapters

Sorry for the dumb/strange questions, but just trying to eliminate possibilities....

You mentioned that only the OS changed. Just to confirm, you were using Frame 2017 on Win 7? When you upgraded, did you upgrade or do a fresh install of Windows 10?

I assume it's on the same computer too. Have you actually timed the difference or is it just by the user's complaint. 

I imagine the documents are using the exact same fonts as before, but what fonts are involved? If they are not standard Windows fonts, what happens if you change the fonts to Arial or TNR (on a copy of the book files just as a test)?

It's really the same security and virus software installed with Win7, not difference at all with this point. Windows Defender and Firewall are disable. Any server in particular you mean? because the servers work fine with Win10 and also the loading time is presenting with the files locally, no server involved. 

This reads like a Windows issue more than an Frame issue. Is there security or virus software involved? You can try to disable the built-in protection (just to test). Has the server been optimized to work with 10? 

I checked and there's no issue between CMS and Win10. Also made the test putting the content on the C:\ drive but there's no change. Still happening the same. Thanks, I'll contact the e-mail you mentioned. 

Have you checked that the CMS doesn't have any issues with Win10? You could also try taking a copy of the content out of the CMS and putting it in a location locally on their c:\ drive to test how fast it opens. Otherwise, I'd suggest contacting the FM folks at tcssup@adobe.com.

The version is FM 2017, and has patched up to the latest. The source FM content is tha same that it was on Win7, nothing has changed really, the only thing changing is OS. No issues at all.

What version of FM? All patched up? Was the source FM content in the same CMS before with Win7 as it is in Win10? Any issues with Win10 in the CMS software?