
‘R6025 pure virtual function call’ is a runtime error that occurs suddenly on the screen and disrupts the program being run prior to it. This error display indicates that the program has been corrupted. R6025 runtime error usually occurs with the Visual C++ framework.
This error occurs when the C++ program crashes which is usually because of the malfunctioning or missing of the device driver or incomplete device driver files.
It happens because your application indirectly calls a pure virtual member function in a context where a call to the function is invalid. Most of the time, the compiler detects it and reports it as an error when building the application. R6025 error is usually detected at run time.
To fix the R6025 pure virtual function call error, you need to find the call to the pure virtual function. After you find the call, you need to rewrite the code so that it is not called again.
There are 2 ways to do this:
One way to fix the R6025 pure virtual function call is to replace the function with an implementation that calls the Windows API function DebugBreak. The DebugBreak causes a hard-coded breakpoint.
Once the code stops running at this breakpoint, it is easy for you to view the call stack. By viewing the call stack you can identify the place where the function was actually called.
Another quick way to find a call to a pure virtual function to fix the R6025 error is to set a breakpoint on the _purecall function that is usually found in PureVirt.c.
By breaking this function you can trace the problem occurring and rewrite the call to ensure the error does not occur and the program you are trying to develop on the Visual C++ framework is easily developed.
If R6025 Error is related to Windows Registry Problem Then here’s how you can fix the problem:
To fix the runtime error R6025, run registry cleaner software to scan and fix all errors. This alternative is suitable if the R6025 error is related to the Windows registry problem and where the error has occurred due to corrupted or malicious registry entries.
You can download the registry cleaner repair tool for free. Run it to scan errors and then click the fix error button to repair the problem immediately.
Some users trying to upgrade from Windows 7 or Windows 8/8.1 reported experiencing installation rollback with error code 0x80070004. This error normally appears when the Computer Name is set to names that can’t be used for the computer. It’s also possible this error occurs if users or program files folder were redirected to a different partition.
The Error code 0x80070004 on Windows 10 is normally caused if any of the following were used as the Computer Name and the user tried to upgrade to Windows 10:
If you don’t solve this error, you won’t be able to upgrade from Windows 7 or Windows 8/8.1 to Windows 10. Note that this error will continuously bring you back to the original OS unless fixed.
Please note that if you’re not confident in doing these steps, you might want to consider seeking the help of an expert or using an automated tool that will help fix this.
Here are a few methods to try.
The most common cause of this error is if your computer uses any of the following reserved names:
These reserved names are not meant to be used as computer names. If this is what your computer uses and you try to upgrade to Windows 10, you will surely get this error. Check your computer name and if you see any of the reserved names, change it right away.
Changing Computer Name in Windows 8.1
If you’re trying to upgrade from Windows 8.1, you can change the name of the computer by following these steps:
Changing Computer Name in Windows 7
If you’re trying to upgrade from Windows, you can follow the steps below to change the name of your computer.
If the first method doesn't work, it probably means the computer name isn’t the cause of this error. Another reason why users experience Error code 0x80070004 when upgrading to Windows 10 is if the “Users” directory was relocated. So, when you try upgrading to Windows 10, the installer wasn’t able to find the user profiles on the “%systemdrive%”, where the current operating system is installed.
If you changed or moved any of the Users, Program Data, or Program Files folders, this will cause the error. Before you upgrade to Windows 10, you might be required to reset or reinstall your current operating system (Windows 7 or Windows 8.1).
If you haven’t made any changes or haven’t moved any of the mentioned folders, there’s a great chance that your users' profiles are corrupted. You can also reinstall your current operating system. However, you might want to check for the corrupter user profile first. To do this, follow the steps below:
On the Users Profiles, make a copy of all the accounts somewhere. Sign out from the current user account then try logging in back using the accounts you’ve copied. For each account, you get an error, delete it. However, make sure that you don’t delete the UpdateUser and Administrator account ever.
After this is done, try upgrading your operating system to windows 10 again.
If the above methods still not useful, you might want to rely on an automated tool. Find a secured and trusted tool. It will help fix this issue.
Code 39 is a device driver error code that pops up when the Windows operating system cannot load the driver for the hardware you want to use.
This hampers your ability to use the hardware properly. The error code is almost always presented in the following format:
“Windows cannot load the device driver for this hardware. The driver may be corrupted or missing.” Code 39
A device driver is a software program that tells the operating system how to control a particular hardware device. Each hardware device has a different driver.
There are separate device drivers for printers, CD-ROM readers, and keyboards, to name a few.
Many device drivers are already built into the operating system. But sometimes you will need to install a new device driver when you want to use a new piece of hardware device that the operating system is not familiar with, or does not anticipate.
Regardless of whether or not the drivers are already integrated into the operating system, you may still experience code 39, typically because of the corrupted or outdated drivers.
Outdated and corrupted drivers cause hardware malfunction and failure, which trigger device driver error codes like code 39. Other causes include incorrect registry values.
Below are some of the easiest and most effective methods to resolve Device Manager error code 39 on your PC.
To follow and implement these methods, you don’t require any technical knowledge or expertise. Simply follow these instructions to fix the error right away.
There is a possibility that the error code 39 is caused by some fluke within the Device Manager or your BIOS.
If that’s the reason, then a simple PC reboot can resolve the issue immediately. Therefore, before you try anything, it is advisable to restart your system.
If it works, then that is great, but if it doesn’t, then don’t worry, try other methods given below to fix this problem successfully.
If the error code 39 is generated due to faulty or outdated drivers, then simply uninstall and remove them and then reinstall new driver versions. There are two ways to remove faulty drivers.
This method, although effective in resolving error code 39, can be time-consuming. To avoid the hassle and save time, try method 3.
Method 3 - Update Drivers Automatically with DRIVERFIX
If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily. On the other hand, if your computer is going through some driver-related issues that have to get fixed, there is a one-click solution known as DRIVERFIX you could check out to resolve them. This program is a useful tool that could repair corrupted drivers and optimize your PC’s overall performance. This is basically a solution that’s within your grasp with just a click. It’s easy to use as it is user-friendly. For a complete set of instructions in downloading and using it, refer to the steps below Perform a full system scan using DRIVERFIX. To do so, follow the instructions below.chkdsk /f /r
“Error 651: The Modem (or other connecting device) has reported an error.”