There are times when this program pops up when you try to open some utilities on Windows. Nevertheless, it is most common when Microsoft Office programs like Excel, Outlook, PowerPoint, and others fail to start.

  • There are many data recovery products available online that can help you in the event of a Windows hard disk crashing suddenly.
  • The next page displays all operating systems detected on your PC—even if you only have one installed.
  • During user login, the system loads the user hive under 0x000000CA the HKEY_USERS key and sets the HKCU symbolic reference to point to the current user.

Press and hold the Windows key on your keyboard then press “R”, this should open Run. In the Group or user name section, select the user you wish to set permissions for.

How To: Permanently delete previously deleted files on a Mac

The paid version offers maximum security and protects your computer from all harmful threats like virus, malware etc. Rolling back/reinstalling display driver has been used by many users. Many applications require run time, thus Windows is dependent on it heavily too. In this case, it is recommended that rolling back to the previous version of Display Driver. If the error is fixed, it can be confirmed that third-party applications cause the error.

To that end, Restoro also increases performance, stops computer freezing and system crashes as well as improves overall PC stability. You have to manually restore your registry using a backed up.reg file.

Solution 1 Close All Other Applications

There is an extra comma in the SQL (after ‘mailaddress’) which results in an exception at .ExecuteReader. After the Catch does nothing, Finally tries to perform clean up, but since you cannot Close a null DataReader object, a brand new NullReferenceException results. Among other things, this code does not anticipate that the user may not have selected something in one or more UI controls. ListBox1.SelectedItem may well be Nothing, so ListBox1.SelectedItem.ToString will result in an NRE. You should also remove any Try/Catch blocks from the relevant code, especially ones where there is nothing in the Catch block. This will cause your code to crash when it tries to use an object which is Nothing. This is what you want because it will identify the exact location of the problem, and allow you to identify the object causing it.

This will throw a NullReferenceException at the second line because you can’t call the instance method ToUpper() on a string reference pointing to null. Object variables that are uninitialized and hence point to nothing. In this case, if you access members of such objects, it causes a NullReferenceException. All these options may need to be given multiple times depending on your precise setup and the libraries you are using. Some passwords are incompatible with our new forum software. If you’re having trouble logging in, try resetting your password. However, if you have a real corruption and you start your SQL Server, you will be in big big trouble.