Hi!
 
I did a search and didn't see too much on Windows 10 but I'm guessing it's been discussed a fair bit here and I just didn't see it. My experience is not good, at least with Sonar. 
 
I find the OS to be just find for normal use, including photoshop (although maybe it's a bit early to really say) but for SSDs and Sonar it seems to be... not working.
 
Right away after the upgrade I noticed Windows boot times were MUCH longer. And by "boot times" I mean the time it takes to actually load everything at startup. They seem to have moved the login screen to the very start so that loads fast and the desktop appears quickly after that, but if you watch the hard drive you'll see it loading in everything else (programs and services) slower afterwards.  My boot time in Windows 7 was around 30-40 seconds but in Windows 10 it's around 2 minutes. And that's without the driver for my Emu 1212m card, which for some reason it wont load automatically any more.
 
Next I noticed it when making MP3s with RazorLame. The encoding time doubled. Same thing happened when I went from XP to windows 7.
 
But Sonar is the most obvious. There's a little window in the bottom right corner that says "VST Scan". In Windows 7 that window came up almost instantly and immediately said "97 Found". Now the window comes up a bit slower, but it stays blank for about 15 seconds before telling me what it's found. That's a pretty significant increase! Then opening a project definitely takes about twice as long as well. 
 
Anyway, Sonar has crashed about 10 times in the last week since the upgrade. It only crashed once every 4-5 months before that in Windows 7. In Win 7 it would blue-screen, in Win 10 it just stops playing and I hear a loud BZZZZZZZZZZZZ, basically 20ms  or so of what I was listening to repeating over and over. There doesn't seem to be any way to stop it. One thing I've always found about Sonar is that I can't shut it down once it crashes, even with the Task Manager. The only option is to reboot. Totally kills my mood and creativity.
 
Tonight I updated SSD firmware and all motherboard drivers and after about 10 minutes of recording Sonar locked again.
 
I've also seen a message about audio engine dropouts. I never saw that before, except in extreme circumstances. Last night it happened once while the whole thing was idle! I came back from another room and found the message sitting on the screen.
 
I do use a lot of tracks but not all at once. And this song has only about half the tracks I've used in other songs.
 
My feeling is a lot of this is a disk access problem. It just seems much much slower than before.  Even bouncing a short 1 second audio clip takes 6-7 seconds. 
 
My MB: Gigabyte Z77-HD4
CPU: Intel Core i7 3770
C: SSD is Crucial M4-CT256M4SSD2
D: is  WD30EFRX-68EUZN0 2TB SATA
Drive with Sonar files (all audio) Crucial_CT240M500SSD1
Sound card is Emu 1212m - onboard sound also enabled for windows sounds (have not found a way to make windows use the ASIO drivers and play sounds through the 1212 so I re-enabled the onboard audio for that)
Graphics is onboard M2762D on Intel HD Graphics 4000 
Qualcomm Atheros AR938x Wireless Network Adapter
Windows 10 Pro 64 bit - all updates installed  
Nothing changed between Win7 and Win 10. One hour to do the upgrade and then back to work, other than eventually enabling onboard sound after trying ASIO4ALL and a few other things.
 
Sonar is up to date. Drivers, BIOS and firmware are all up to date. Everything works perfectly otherwise. I've had no issues with Win 10 at the office yet either and I've been using it there for a few months now on several computers.
 
And, of course, I can't reproduce the crashes. It's very random. One day everything is fine, the next it crashes. No idea what could be different. Generally nothing changes except the song as I work on it.
 
SO... any ideas would be appreciated. Thanks!
Scott
 
 
 

I have W10 on old E8400 Dual Core 3.0Mhz with Crucial M100 120GB. After you login it boots in maybe 8-10 secs.
Some PCs do have slow boot issues with W10 if upgraded rather than clean install.
Check these out....
http://www.expertreviews.co.uk/software/operating-systems/1403760/how-to-fix-the-windows-10-slow-boot-bug
 
http://forums.windowscentral.com/windows-10/370969-windows-10-slow-boot.html
 
You can get W10 1511 as an ISO and do a clean install from USB/DVD if nothing else works.

I just noticed you are using ASIO4ALL.
That will get you booted right off the forum .
No seriously, that could well be the dropout problem. (or your soundcard itself).
I read that the lastest W10 version (1511) fixed some things for 1212m like a sample rate issue.
from the Creative Forum.
10-17-2015, 04:15 PM
Windows 10 Build 10565 fix the sample rate issue.
The memory leak of PatchMix it's fixed too.
PatchMix still does not load at startup.
 

you say drivers are up to date... did you load the Win 10 drivers for the mobo?  using onboard video will degrade your performance, esp with old drivers, but your SSD should make it fly... and I thought I read ASIO4All does not work well with Win 10... not updated. There were many small issues I had to fix to get Win 10 running well, but not so much any big performance downgrades. Check you have Win 10 build 1511 also.  I still have random crashes in Sonar, usually when I try to do something while audio is playing.

I have a healthy distrust of SSD's, having come by it honestly. The probability is kind of low but it may be a bit of a red herring that the Windows 10 upgrade coincided with the issues you're having now. It may in fact be hardware related.  
 
Since slow boot times are generally not caused by Sonar  you either have some issue with your OS configuration, or you are in the early stages of an SSD failure. Check your Windows event log for signs of a failing drive, and make sure you have an up to date backup in place if it does go out on you. In the meantime I agree that a clean install of Windows 10 might do the trick for you.
 
Good luck and keep us up to date on your progress!
 

OK, I'll address a few of these:
 
I'm almost 100% sure this is not SSD failure. There are 2 drives and both are obviously running much slower.
 
Also, Sunday morning everything was fine. Sunday afternoon after upgrading to Windows 10 everything was slow. Doubtful 2 SSDs failed at that exact moment. 
 
ASIO4ALL: I tried it, it didn't work so I uninstalled it, so that can't be the problem either (assuming it's actually gone!).
 
Distrusting SSDs: Same as above. They worked perfectly before I installed Windows 10, then very slow immediately after. SO FAR, I trust them and blame Windows.
 
Motherboard drivers: I installed Windows 10 specific drivers before posting this last night. No difference.
 
Slow boot bug: I saw that too but haven't tried it. But this isn't really about boot time, it's about Sonar crashing a lot and generally slow SSD access time so I don't think it's related. I'll try it anyway.
 
Build 1511: I can't find any reference to that. Winver tells me it's build 10240. I don't know how to get build 10565. I checked for updates 3 times today and this is what I got. It says it's up to date. Interesting to see some fixes though. Maybe PatchMix is causing the crashes. 
 
Clean Install: Possible. I am considering getting another SSD to use for Win10 testing. I think I will go back to Win 7 but maybe that would be a good way to test win 10 and see if I can get it working up to speed before doing a clean install on my real system drive. Although I'm not sure if MS will like the new drive. It might think that is a new computer and there might be a license issue. 
 
I will also look into build 10565 and see if I can get that. I also have a graphics card I could put back in the system but like I said, everything was perfect in Win 7 so it seems unlikely that graphics would suddenly cause this either. Clean install could be a good answer but it takes so much time to reinstall/configure everything, so a test SSD might be good.
 
Additional info that I forgot:
Sonar Platinum, all updates
16GB RAM
 
Thanks for all the info/ideas. I actually prefer Win7 to 10 and would like to stay with it but I'm tired of getting left behind. It would be nice to get caught up and hope that this setup lasts for 4-5 (...10) years before I have to do it again. 
 
Scott

I have a SSD and when I installed Windows 10, I too had a longer boot time on my PC and it didn't make sense.   After investigation and disconnecting each piece of hardware, each internal and external hard drive and each USB device, I found the culprit to be a USB 2.0 Motu Micro Lite midi interface.   It seems when I installed Windows 10 as an update from Windows 8.1 the Midi Interface didn't appreciate it.  It crashed and stopped my computer from booting up properly.  After calling Motu and sending it back for repairs, it is working properly and the SSD hard drive boots windows 10 with everything connect in about 6 seconds..

Download the W10 Media Creation Tool here
https://www.microsoft.com/en-us/software-download/windows10
THis will download and make installation media (DVD/USB) for the latest W10 version 1511 build 10565 (clean install).
If you just want to update W10 to latest (and keep your programs/data), use Windows update.

Go back to W7. 

I created a new Win 10 install disk and I think I will end up doing a clean install on a separate (new) SSD and do experiments there.
 
I just found out that there is a 30 day limit on rollbacks and after this new update is installed I wont be able to go back any more, (this is also why the new update wont install on my computer until after the 30 days) so I will do some more testing and maybe roll back soon and only do testing on the new SSD.
 
I spent some time going through the startup programs and services last night and disabled a bunch of things so maybe that will help.
 
I also got a disk testing program (HD Tune) and it looks like the drives are working fine but it will be interesting to do the same tests in Windows 7. 
 
Computers are a pain. Have I mentioned that (today)?
 
Thanks again!