Took me weeks to figure out how to get rid of this error but I finally fixed it today. You have to DOWNLOAD AN OLD VERSION of spotify. I just googled it and found a download. Then once it's downloaded you can update it to the current version!
Thought I would post since none of the other solutions on any forums worked for me!
I uninstalled Spotify as it was stuttering (75 Mbps upload) for no reason and this code came up when trying to install Spotify again. I had to delete the program, restart the system and hit F8 to install it in 'safe mode with networking'. It downloaded and retarted the computer. At first an error code 101 (firewall) popped up, but went away after a few mopments and all is well again.
I had the same problem today. My Spotify app screwed up. It was not able to open it and it said it was already running. I went into the task manager to see if there was anything associated with Spotify. Surely enough the spotify.exe was open. I tried closing it out. It would NOT close. I chose to restart my computer after that. Then, I tried opening Spotify again. Nothing happens. I became fed up and uninstalled the app. It said it successfully uninstalled. It left behind the app data. You can get to the roaming section of Spotify by typing in to the start search %appdata% and look for Spotify. Try to delete that folder. If you can't, try rebooting your computer. Once you have rebooted, quickly go back to the same directory and try once again to delete Spotify. So, I then went to install the lastest version again and was unable to start the installation of Spotify. Feeling hopeless, I went to the forums here and started reading up on error 17. There is no clear cut answer as everybody has different versions of this error, which is ridiculous! I read about installing previous versions of Spotify. Well, this worked for me. I recommend you finding any files and folders that you can before installing another version. I also noticed that trying to install a next to current version of Spotify from the current version did not work and also the versions not so far from the latest. They have too much in common. So, the one I chose worked for me- http://www.filehorse.com/download-spotify/8739/ . This is an old version from 2011 with Facebook integration. So, once you have completed this older installation, you can even update back to the latest. Just go to Help at the top left corner of the Spotify screen and click on About Spotify... Look for something like "an update is available. Click to download." Spotify will tell you as usual that you can just click the restart button to finish the process of updating. The installer box, after Spotify closed, for the next installation almost got my hopes up as it was the same from when it last failed. But, it went ahead and updated.
I got totally furstrated and am dumping spotify for anther provifoer that was up and running right away. Really disapointed in spotify. I paid for 2 accounts, but it wasn't worth it if I can't even use it on my PC.
I got totally frustrated and am dumping spotifuggle for anther provider that was up and running right away. Really disappointed in spotifuggle. I paid for 2 accounts, but it wasn't worth it if I can't even use it on my PC.