After investigating this particular issue thoroughly, it turns out that there are several different underlying causes that might be responsible for the apparition of this error code. Here’s a list of potential culprits: Now that you are intimately aware of every scenario that might be causing this issue, here’s a list of verified fixers that other affected users have successfully used to resolve the ‘runtime error R634‘ error:
Method 1: Installing / Reinstall Microsoft Visual C++ 2010 Redist. Packages
As it turns out, more often than not, the ‘runtime error R634‘ error will occur due to a missing set of Visual C++ libraries that are needed to complete the operation that you’re currently trying to undergo. This is even more likely if you’re encountering this issue while attempting to open up an application or initiate a scan with an installed utility. If you see this error, it doesn’t necessarily mean that you’re missing the Visual C++ 2010 Redist. libraries – It’s also possible that you have the required package installed but it’s affected by system file corruption. If this scenario is applicable, follow the instructions below to uninstall the current installation of Microsoft Visual C++ 2010 Redist. Packages before reinstalling a healthy equivalent: In case the same problem is still occurring, move down to the next potential fix below.
Method 2: Updating your Browser to the latest version (if applicable)
In case you’re encountering this issue while attempting to perform a certain action inside your browser (such as opening the add-in or extension bar), this might be due to an outdated browser infrastructure. Several affected users that were dealing with the same problem have confirmed that the issue was finally resolved after updating their browser version to the latest build available. Of course, the instructions on how to do this will be different from browser to browsers – The majority of browsers are configured to auto-update themselves by default. But since the issue is mainly reported to occur on Firefox and Chrome, we’ve put together 2 subsides that will walk you through the process of updating your browser to the latest version available. Follow the guide that’s applicable to your 3rd party browser of choice:
A. Updating your Google Chrome browser
B. Updating your Mozilla Firefox browser
In case you are still encountering the same ‘runtime error R634’, move down to the next potential fix below.
Method 3: Forcing the program to run with Admin Access
If you’re encountering this issue while using a 3rd party program that is not part of the suite included on Windows by default, you can expect to see the runtime error R634 occurring because the program doesn’t have enough permissions to utilize Visual C++ Runtime dependencies. Several affected users encountering the same issue have confirmed that they finally managed to fix the issue after forcing the affected program to open with admin access. If you think this scenario is applicable, follow the instructions below to open the executable with admin access and make the change permanent if the change is a success. Follow the instructions below to force the affected program to run with admin access and modify the default behavior so that the program always runs with administrative privileges: If the issue is still not occurring, move down to the next potential fix below.
Method 4: Uninstalling the Conflicting Backup software (if applicable)
As it turns out, you can also expect to see this error if this runtime dependency is conflicting with a 3rd party backup software. As it turns out, the majority of 3rd party backup players (including EaseUS Backup and Acronis) might trigger the runtime error R634 when conflicting with the built-in backup process. Several affected users that were dealing with the same issue have reported that the issue was finally fixed after they uninstalled the conflicting software. If this scenario is applicable, follow the instructions below to effectively uninstall the conflicting 3rd party backup tool that is causing the runtime error R634:
Method 5: Reinstall every iTunes program (if applicable)
If you’re actively using iTunes on your Windows computer, you can also expect to see the runtime error R634 due to a conflict caused by an inconsistent Apple installation file. Several affected users that were also dealing with this issue have reported that the issue was finally resolved after they uninstalled every component belonging to Apple before reinstalling everything from scratch. However, keep in mind that the exact steps of uninstalling iTunes and every associated Apple component will be different depending on if you’re using the desktop version or the UWP (Universal Windows Platform). Because of this, we’ve put together two different sub guides that will walk you through the instructions of reinstalling every iTunes component. Follow sub guide A if you’re using iTunes UWP (Windows 10 Only) and sub guide B if you’re using the classic desktop version:
A. Reinstalling iTunes for UWP
B. Reinstalling iTunes for Desktop
In case the same runtime error R634 issue is still occurring, move down to the next potential fix below.
Method 6: Deploying SFC and DISM scans
As it turns out, you can also expect the runtime error R634 to occur due to some type of system file corruption that is affecting the current Windows installation. This is quite common in cases where you’re also experiencing other runtime errors (with a different error code). If this scenario looks like it could be applicable, you should run a couple of scans with two built-in utilities – System File Checker (SFC) and Deployment Image Servicing and Management(DISM). Although hese two tools share some similarities, we recommend running both scans in quick succession in order to improve your chance of fixing the corrupted system files. Start with a simple SFC scan. Important: After you initiate this procedure, it’s very important to not close the CMD window even if the utility looks like it froze. Wait patiently until the process is complete, as interrupting the operation might cause logical errors on your HDD or SSD. Note: This is an entirely local tool that will not require you to have a reliable internet connection. After the SFC scan is finally complete, reboot your computer and see if the issue is fixed once the next computer startup is complete. If the same runtime error R634 problem is still occurring, go for a DISM scan and wait until the operation is complete. Note: This utility works differently from SFC – It uses a sub-component of Windows Update to download healthy components to replace corrupted instances of system files. Because of this fact, you need to make sure that you have reliable Internet before initiating this operation. Once the DISM scan has been completed successfully, restart your computer and check if system audio playback is restored. In case the same runtime error R634 issue is still occurring, move down to the next potential fix below.
Method 7: Refreshing every Windows component
If none of the fixes above have allowed you to fix the runtime error R634 issue, there’s a very good chance that your system is dealing with some type of system file corruption that will not be resolved conventionally. If this scenario is applicable, the only viable fix left is to reset every Windows component completely with a procedure like clean install or repair install (in-place upgrade). Option A: A clean install is an easier procedure since it will not require you to insert or plug in a compatible installation media. Note: But unless you take some extra step to back up your data in advance, you will lose your files, user preferences, and every installed program and game. Option B: A repair install (in place repair) is more tedious to deploy and you will need to use compatible installation media. However, the main advantage is that this operation will only touch Windows components – Which means that personal files, games, applications, documents, and everything else that’s not OS-related will not be affected by this procedure.
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