Runtime Error 21

While your PC gets runtime error 21, there are some runtime errors symptoms including program freezes, system lock-ups, slow computer performance, startup/shutdown problems and installation
errors. Those are why you should fix the runtime error 21 in your pc. What's worse, your Windows system will be destroyed by runtime error 21.

It is so easy for you to fix the runtime error 21 on your own so that you can save a lot of money from fix runtime error 21 on the computer shop. Just follow the 4 step-by-step guides below:

1.Free download the runtime error 21 fix tool

2.Launch it after finishing the installation

3.Click"Scan Now" button

4.Click"Repair Problems" button and fix runtime error 21

How to Fix Runtime error 21?

Runtime error causes:

Runtime error messages that crop up while the computer is in operation can be generated by various different sources including the system BIOS, the operating system, hardware
driver routines, or application software. It is usually possible to determine roughly what is causing the runtime error 21, since application-specific messages usually mention the application that is generating them. Also, hardware or system problems can cause the runtime error 21.

Solutions for runtime error 21：

1.You need to check if the runtime error is caused by software installed after the Windows installation. Use the Windows Task Manager to close all applications. Then reboot the PC.

2.Update the antivirus on your system to protect it from damaging the program folders. Scan the PC for viruses.

3.If your software is out of date, you may need to update to ensure that they run properly.

4.When certain files may be damaged or missing, you need to repair the files.

5.While the above tips related to programs, runtime error 21 can also be caused due to damaged hardware. If that is so, you may need to contact the dealer you bought the PC from to fix the error.

6.Turn on the script debugging option in Internet Explorer.

Comparing with the steps above, the most effective and easiest tip to fix the runtime error 21 is to free download and install the Registry Repair Tool, which can prevent the runtime error 21 from occurring.