Hi, I have been able to update without removing the old Evernote or using third parties 1. Get frustrated with the bootstrapper error. 2. backup 3. Clean the temp files (C:\Users\userX\AppData\Local\Temp) and leave the folder open. 4. Open Evernote an search for updates. 5. try to install the one it finds, you will get the same error again 6. look in the open folder from step 3 and you will find an Evernote install 7. install for all users and it will update without problems. Hope this helps.