I know I am late to the party...
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 I upgraded my work PC to Windows 10 last night. So far so good. Everything works. I am still getting used to Windows 10. It seems to be a bit slower than Windows 8.1. Maybe I need another reboot or something. 
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 Do a clean install now that your license is attached to the machine. My upgraded machines were always slow and issues laden... I always do an upgrade, then fresh full install, takes a bit of time.. but totally worth it. 
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 @Dashrender said: Do a clean install now that your license is attached to the machine. My upgraded machines were always slow and issues laden... I always do an upgrade, then fresh full install, takes a bit of time.. but totally worth it. That is definitely a project, but as an IT professional I should have known better. Microsoft still sucks at upgrades after all these years...lol 
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 On a positive note, I like the new edge browser. 
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 I am starting to like edge. It was crashing a bit at first but now seems to do pretty well. I so far have been pretty happy with Windows 10. 
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 @IRJ said: On a positive note, I like the new edge browser. I quite like Edge too - in fact, it's been set as default for quite a while. The only real issue I have with Windows 10 - and it's one I haven't yet been able to resolve - is that Outlook is extremely slow to start immediately after boot. Besides that, Windows 10 is quite solid and non-problematic. 
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 @Brett-at-ioSafe said: @IRJ said: On a positive note, I like the new edge browser. I quite like Edge too - in fact, it's been set as default for quite a while. The only real issue I have with Windows 10 - and it's one I haven't yet been able to resolve - is that Outlook is extremely slow to start immediately after boot. Besides that, Windows 10 is quite solid and non-problematic. OMG Outlook 2013 is so slow on Windows 10!! 
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 @scottalanmiller said: @Brett-at-ioSafe said: @IRJ said: On a positive note, I like the new edge browser. I quite like Edge too - in fact, it's been set as default for quite a while. The only real issue I have with Windows 10 - and it's one I haven't yet been able to resolve - is that Outlook is extremely slow to start immediately after boot. Besides that, Windows 10 is quite solid and non-problematic. OMG Outlook 2013 is so slow on Windows 10!! ...and Outlook 2016 is no better! 
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 Oh that's sad. I was hopeful about that, but have not been hearing good things. 
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 I'm not having any issue with my Outlook 2016 in Windows 10 
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 Outlook is general has a slow startup, I'm not finding it any slower on windows 10. 
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 Hard to compare as I was on OWA before this. 
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 @brianlittlejohn It's certainly not a universal problem. Outlook 2016 performs perfectly well on our other Windows 10 machines. 
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 Outlook isn't slow for me, but I don't use cached mode either. 
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 Outlook is very slow, but other than that I am not having any issues. A reboot seemed to fix all speed related issues other than Outlook. 



