Windows 10 version 1709 includes a fix for some file system events. Visual Studio 2015 mistakenly interprets these events as deleting the file.
Download the update package now.
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
To work around this issue, reload the project. After reloading, the project will include the missing file again.
To apply this hotfix, you must have Visual Studio 2015 Update 3 installed.
You may have to restart the computer after you apply this hotfix.
This hotfix does not replace any previously released hotfix.
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section