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Invalid file names and file types in OneDrive and SharePoint. Expand a section below to see general issues or error messages you might receive when you try to upload files from the OneDrive website , along with possible solutions.

Go to the OneDrive website and rename your Camera Roll folder. Turn on camera upload to restart the upload of camera roll pictures from your mobile device into the cloud. Tip: OneDrive cannot upload photos optimized for iCloud. The connection to OneDrive was lost during the file transfer, or you weren't signed in to OneDrive. Sign in to OneDrive with your Microsoft account, and then try to upload the file again. You don't have permission to access the file for work or school accounts only.

If the file is on a server, make sure you can open the file, and then try to upload it again. For more info about getting permission to access the file, contact your network administrator.

You don't have permission to upload the file to the folder that you selected. Select a folder that you have permission to edit, and then try to upload the file again. Learn more about Video formats you can play on the OneDrive website. To upload files to a new folder in OneDrive, first create the folder, and then upload the files to it. Files that are 0 bytes in size can't be uploaded from the OneDrive website.

The full path including the file name is too long. The path must contain fewer than characters. Shorten the name of your file or the name of subfolders in OneDrive, or select a subfolder that's closer to the top-level folder, and then try to upload the file again.

To upload to a specific folder, browse to the destination folder, then select Upload. If you don't have a Microsoft subscription, you can only add up to three files in your Personal Vault.

If you do have a subscription, you can add as many files as you want up to your storage limit. Select Replace to replace the existing file, or select Keep both to rename the file you're uploading.

Note: If a file doesn't have an extension, it can't be uploaded to a location that has a folder with the same name. Close the file you are trying to replace. In some cases, it may be faster to save or download the file with a new file name, delete the original file, and rename the new file to the original file name. If you use Microsoft Edge or a recent version of other popular web browsers, you can upload files to OneDrive that are up to GB in size.

If you use an older web browser, the maximum file size is MB. The steps will vary depending on your operating system and applications. If the Dropbox desktop app is on an external hard drive, check your connection. If you have your Dropbox folder on an external hard drive, make sure the external hard drive is connected and recognized by your computer.

If it is, contact support. Uninstall and reinstall the Dropbox desktop app. Uninstall and reinstall the Dropbox desktop app on your computer. Learn how to uninstall the Dropbox desktop app on Mac, Windows, and Linux.

Then, reinstall the Dropbox desktop app. These include:. Make sure Dropbox supports your device and operating system. Some applications automatically save your changes back to Dropbox, while others need to be saved back manually. You may also have saved it somewhere else on your computer.

Search your computer for the file with the search bar in your taskbar Windows or Spotlight in your menu bar Mac. If the file has a lock icon on it instead, that means that it was locked using Dropbox. Visit this article to learn how to unlock it. If this is the case, you should see an error message from Dropbox that notifies you. Let us know how we can improve:. Thanks for your feedback! Let us know how this article helped:. You can make an exact copy a duplicate of a Dropbox file or folder on dropbox.

Find out how to download files and folders to your computer from dropbox. Learn how to find and unzip your downloads. To learn how to change or add file see Add or remove file types. NET Web handler file. Click Security , and then click Define blocked file types. To change the web application, click the link next to Web Application : and then click Change Web Application.

Note: You do not have to type a file name extension in the list in alphabetical order. The next time that you open the list, the file name extension you added will be correctly sorted in alphabetical order. There are certain types of files that you can't upload to a list or a library on SharePoint Server and SharePoint Server For on-premises deployments of SharePoint Foundation or SharePoint Server and SharePoint Server , a server administrator can add or remove file types from the list of blocked file types.

For more information about how to work with blocked file types for SharePoint Server sites, see one of the following articles, depending on the version of SharePoint you have:.

Manage blocked file types in SharePoint Server Manage blocked file types SharePoint Server Manage blocked file types SharePoint Foundation Documents and Libraries. Types of files that cannot be added to a list or library.

No restrictions to types of files added to SharePoint Recent improvements in SharePoint in Microsoft and SharePoint Server have removed the limitations on types of files that can be added. File extension File type.

NET Active server page. NET web services source file. NET wep user control file. NET master web page. Blocked file types for SharePoint Server There are certain types of files that you can't upload to a list or a library on SharePoint Server