

Search for Command Prompt or select All Programs > Accessories > Command Prompt. Quit the Dropbox application from the Dropbox menu.You can fix that with the following steps: Fix folder permissions on Windows If this doesn't resolve the issue, then it's possible that some files in your folder have their permissions incorrectly set. The installation should work without error. Once your password is reset, try reinstalling Dropbox. Enter your new password twice, and press Change Password.Click your account and press Change my password.Click Control Panel from your Windows Start menu.

Not using Dropbox yet? See how Dropbox makes syncing files easy. If this doesn't fix the problem, see the bottom of this article for more further troubleshooting measures.

Resetting your Windows password should fix this problem. In most cases, it's possible that access to the registry is protected by the account credentials of an old or out-of-date user account. If that didn't work either, check to see if you have any system restore points saved to a date when the problem hadn't yet manifested itself.Īnd finally: remember that there are excellent free third-party photo viewers, and on the subject of video players, I recommend you read: VLC - more than just a video player.If you receive an error indicating that Dropbox can't access your registry, it means Dropbox is attempting to access vital account information using your Windows Registry, but is being denied permission. Is working? Now close that app and run the photo or video that hasn't been opened - this time it should open. Close the PowerShell window after running the command and run the problematic application.The command on the first line will re-register the Photos app (if you have a photo problem), the second is "Movie & TV" (if you have a video problem). Then type one of the following commands in the PowerShell window and press Enter.If you don't see it in the menu, start typing "PowerShell" in the taskbar search, and when you find it, right-click and select "Run as administrator." To do this, right-click the Start button and select "Windows PowerShell (Administrator)". If the method did not work, or if the application does not start in step 3, try to re-register the application: It may interest you: How to uninstall the printer driver
