Hi,
Frankie says ... you must have dope ... wait ...
gueeeetarrrr!
I have not had any issues with it ... but I was prepared and made sure the computer was ready for it.
Here's my checklist: (2 more machines to do!)
1. No files of yours whatsoever saved in the machine! Pull them to CD or another machine! Safer that way.
2. Uninstall/clean as much as possible. If you only have Windows and the Firewall program, you are likely at its safest point. make a list of programs and such, if you have to go download the VST's again, for example! I do not know, if there are, or not, any issues with Sonar or any musical software, but I presume that they should be just fine. But, re-installing might be safer, right after the Firewall, for example. Others here can tell you better than I on that.
3. You do not have to uninstall any programs -- GENERALLY -- however, some of them have to be re-installed anyway. For ex: on one of my machines, I only had World of Warcraft, anyway. Big deal!
4. Drivers -- Video. Have it ready on the Hard Drive and make sure these are on a separate folder, and so on. My NVidia GTX 970 did not install properly on W10 as Windows did not bother to look for the proper drivers and set things up right and I came back up from it all in 640x480. On the other machine with the GTX 760 (can't even remember now!) had no issues.
4A. Drivers -- Motherboard and other peripherals. Some older motherboards MIGHT require new drivers. Make sure you check BEFORE even considering updating the Windows on it. However, this might take all the fun out of it, since some MB folks are well known to be jerks and not offer updated drivers, despite knowing there is an issue with it.
5. Network -- I did not lose any network connectivity to my other machines, and did not have to redo anything. However, W10, STILL has the same stupid issues that it can't find one machine, and you have to go to the other machine and click on network and look at this one, and then things come up fine! That is, by far the worst networking setup and design I ever saw!
6. Privacy settings ... on the install it asks you and I did "Custom", and turned everything off and figure I can turn anything on I want when I want or need it. This, is a biggie on the net right now, so I thought I would mention it.
7. Browser. Clean all the history, forms, temp, passwords, everything! Both on Chrome and IE, and so forth.
AFTER it all the install, I added whatever I needed. All my files are not in any of the network computers, btw ... they are all on Enclosures, duplicated. I use 3 enclosures, I try not to save anything on the computer whatsoever.
8. Failure. Each of my computers is setup, so that if the update/install fails, it won't hurt anything that I do, except waste another hour. Thus, the less you have, the less you have to redo on any machine. At the same time, I do not have to worry about redoing my whole computer, because the whole thing screwed up. To me, this is important, because the re-image this and that and this and that, is an endless bunch of geek'ery for me, that I do not care to engage in, and does not make my computer skills any better or worse. In fact, if one of my old roomies was an issue, he had a love/hate relationship with ______________ because he redid that thing 2 or 3 times a week, and had to have his 1,000 partitions and so on! Nowadays, Hard Drives are so cheap that having partitions is down right silly and not even faster, than the alternatives. The external solutions these days are safer and more reliable, in general. This last part, is my OPINION, and some netadmins might disagree with me, and I have no bone or issue with that at all.
This has been my experience , and I do have the disks for W8 if I need them to redo a machine, when, I hope that I can do this directly to W10 ... which is still an issue for me, and it probably means I have to purchase one disk with W10, so I can simplify the setup any time thereafter. Hard drives do crank down once in a while!