I came from android ( used about 7 google phones) background. my 640xl lte dual sim is my first windows 10 phone. i like this window phone which is fully compatible with my win 10 pc. however, i found some thing can be improved. In android phone, each app can be reset in two ways: 1) clear the cache, 2) reset the app to factory default. but with window phone, there is no such function for most of the apps- especially factory app which come with the system. last time, i have to do a hard reset just for fixing my sms notification err. After installed the latest 586.29, i have another issue with my outlook which gives notification even all the mails have been read. it still give notification after i delete the account. I noticed there is a 'reset' function in onedrive app but not for outlook. i dont know how hard to add a reset function for such app, but i believe it can be done. when i am using the windows phone as my business phone, it just does not make sense each time if there is a bug related to an app, i have to carry out a factory hard reset , then reinstall every app! Please. At least to have reset function for some key apps ( which cannot be un-installed). anyone agree with me? please add your vote.