OK, the big question (El Capitan)...

@JustMark the USB issue is still there after Upgrade to El Capitain 10.11 beta 3, and parallels Update
Version 10.2.1 (29006) Hope for fast solution. i use parallels from v7 to v10 every year a new version paid of course.
 
Installed first public beta of 10.11 today on my Mac; my Win 8.1 VM mostly works and does see my networked machines/NAS
and does see my Samsung T1 SSD (which has my 8.1 VM on it) via USB 3.0 on my MBA; my WIN 10 Pre-Release, however,
does not see the T1 when I run that VM; I do not run the two Windows VM at the same time; file transfer speeds seem
a bit higher with this combo but there are so many network variables it's hard to generalize the speeds & feeds
at this time; I'm just glad that it works at all; I'll keep running things and report back on anything worthwhile to mention
 
Well, I think I'll wait for Parallels to get their Version 10 a little more ready for OS X 10.11; just too
many irritants for now to make this work; main 2 irritants: Win 8.1 Desktop will not render itself and 2)all the
8.1 applications listed all ask for an associated app to run; it's as tho the Parallels install is disconnected
from OS X itself; tried re-installing Parallels to no avail; for me at least 10.2.1 is not ready for El Capitan betas
at this moment; this is no knock on the company; it will work fine one day..
 
Moved my WIN 8.1 VM from my Samsung T1 (USB 3.0) to my main HD in my MBA and now Parallels
is behaving much better with El Capitan..so, yes, as written above by others the USB connections
appear to be problematic at this time
 
it's quite logical that performance is worse when VM is located on the ext. drive. The others are writing about forwarding USB devices in the VM (via devices > external devices dialog), not about your case. Was performance better in Yosemite when running VM located on external drive?
 
The performance on the T1 SSD was blazing (primarily because the MBA 2014 has such fast USB 3.0 ports and
fast internal SSD HD; Parallels 10 performed very well with this combo and is the main reason I bought the
T1 in the first place; even tho Parallels is functioning significantly better on my internal HD it is still
quite buggy and generally unreliable; I find myself re-starting Win 8.1 frequently to clear pause and suspend issues;
Windows desktop still does not render itself correctly either..Thanx for the reply
 
thanks for reply. You probably can check the read/write speed on El Capitan and on Yosemite (if any available). As for the other issues will wait for the compatibility improvements.. =)
 
Marat@Parallels said:
you should disable rootless: http://kb.parallels.com/en/123072
Click to expand...
Hi.
I had this issue while working on Parallels 9. The "rootless" way just didn't work. I thought, reading from this thread that I was needed to be on 10.2.1, so I downloaded it. Still it doesn't work.

I've so far tried:
1. removing the VM file
2. then applying the rootless command (MAC rebooted)
3a. trying to create a new VM: no BOOTCAMP option was offered
3b. trying to reactivate the previous VM: usual, well know error.

Any suggestion?
 
I reverted to Yosemite 10.10.4; 10.11 beta was just too buggy and my Win 8.1 VM worked very irradically;
concentrating now on Parallels 10 working with Win 10...will Parallels plan to update 10.2.1 for Win 10?
 
Guys, my problem is a little different and I can't find specific help for it. I'm on the current El Capitan beta trying to open Parallels to acces a Windows 8 VM. Everything worked flawlessly until Beta 3... When I click to open parallels it crashes and reboots my Mac before app even opens. 2 support calls, 4 hours of tinkering and a parallels employee remote logged into my computer still no progress. I've uninstalled and reinstalled and tried several other options. Does anyone have a miracle cure for me? Please?
 
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