Opera 12.18 Mail problem in Windows 10 (omailbse.dat)
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mihaaa last edited byHEy there,. 
 just updated to Windows 10. With the update the email failed to initialize in Oper a12.18 (browser and mail client sitll integrated). I keep getting the notice :" 
 Error While initializing Opera Mail.
 There was a problem initializing Opera Mail.
 The following file appears to be in use by another application: C:\username\Appdata\Local\Opera\Opear\mail\omailbase.dat
 To retry please close the application that uses that file or restart your system.
 "Restart of the prog or the system doesn't do anything,, I ran the ccleaner regitry tool but it didn't help either. When I ran the system in safe mode (network) the mail appeared, but didn't work (fetching new emails, or sending). The email base is pretty big, and would be a pain to not be able to use it as I did for the last 10 years. Any help would be appreciated! Thanx 
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lando242 last edited byIt might have been damaged in the upgrade. Have you tried uninstalling and reinstalling it? 
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A Former User last edited byIf that doesn't work, try downloading and installing this utility. 
 It will put a right click menu entry on the file which should tell you if it's being locked by another program, and which program it is.
  
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mihaaa last edited byhey guys, thanks for the input!! - unfortunately i havent reinstalled the Opera yet as it took forever to backum the latest files (more than a decade of emails), so I had to postpone it for some other time (today if possible)
- trying the unlocker thingy on omailbase.dat, resulted in the same notification as before (Dave, great app, I tried to find sth like it but couldn't)
- removing the omailbase.dat from the folder, resulted in the same notification
 I guess the most probable option is that the file has been damged,.. ? 
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mihaaa last edited bya followup.. a reinstall and replacing just a basic files did the job (mail, bookmarks, contacts, wand etc..) as far as I could tell the problem was caused by a file from User CSS directory, eg: C:\Users\YOURUSERNAME\AppData\Roaming\Opera\Opera x64\styles\user 
 couldn't tell which one though..thanks for your help, much appreciated!! 
 take care