What is causing ALT Codes to stop working on Windows 10?
We investigated this particular by looking at various user reports and by analyzing the most popular fixes that affected users have deployed in order to resolve the issue. As it turns out, this particular problem can surface from a number of different causes. Here’s a shortlist of causes that could lead to the ALT codes issue: If you’re currently for solutions capable of resolving this error message, this article will point you towards several different troubleshooting guides that might help you fix the problem. Down below, you’ll discover several different potential fixes that other users in a similar situation have used successfully to resolve the issue. For the best results, we advise you to follow the methods below in the same order that they are presented in (we ordered them by efficiency and severity). Eventually, you will encounter a potential fix that will allow you to resolve the issue regardless of the culprit that’s causing the issue. Let’s begin!
Method 1: Enabling Mouse Keys when Numlock is ON
If you’re only encountering this issue when you’re trying to use the ALT codes using the Numpad, it’s almost always because you need to enable a Mouse option from the Ease of Access menu. Several Windows users that we’re struggling to resolve the same problem have reported that the issue was resolved completely after they accessed the Mouse tab of the Ease of Access menu and enabled the ‘Use Mouse Keys when Numlock is On’ option. However, if you’re also encountering the same issues even when you use the regular numerical keys, this option will not resolve the issue. If you think this method might be applicable to you, follow the instructions below to access your Ease of Access settings and make the necessary modifications: If the same issue is still occurring, move down to the next method below.
Method 2: Enabling Entry of all Unicode characters via Regedit
If method one didn’t allow you to resolve the issue, another way to go around resolving this problem is to ensure that you enable the entry of all Unicode characters by code. This can be accomplished by adding a string value to the Input Method key using Registry Editor. After doing this modification, you will be able to enter any ALT character by holding down the Alt key, pressing the numeric keypad and entering the hex code. Several affected users have confirmed that this method allowed them to fix the functionality of the ALT keys on Windows 10. Here’s a quick guide through enabling the entry of all Unicode characters using the Registry Editor: If you’re still unable to use ALT characters, move down to the next method below.
Method 3: Uninstall interfering application (if applicable)
As it turns out, there are also several applications with the potential of suppressing the use of the Alt keys. The reason for this is that they are kept open for dedicated use. In most cases, the ALT key is used to enable or disable the push-to-talk feature, which effectively breaks the ability to use ALT characters. Mumble is most commonly reported as the voice-over IP app causing this issue, but there are certainly others that will also do this. Several Windows 10 users that found themselves in an identical scenario have managed to get the issue resolved simply by uninstalling the app that was causing the interference. Here’s a step-by-step guide on uninstalling the application that is causing the problem: If the issue is still occurring or the method above wasn’t applicable, move down to the next method below.
Method 4: Adding ALT characters using the Character Map
If none of the methods above worked for you, you should be able to use ALT characters using the Character Map, but this process is a little time-consuming. Several Windows users that have been unable to use the ALT characters conventionally have reported that they managed to circumvent the issue entirely by using the Character Map. Here’s a quick guide on adding ALT characters using the Character Map: If this solution is not to your liking, move down to the next method below to review some 3rd party alternatives.
Method 5: Using 3rd party alternatives
If none of the methods above have allowed you to restore the normal functionality of the Alt keys, you might want to consider a 3rd party alternative. Several affected users have reported that they were finally able to use the ALT keys effectively by using 3rd party programs like Sharpkeys or Keytweak. These 3rd party solutions will allow you to edit and remap keys in a manner that is way easier than doing it manually and getting lost in the official documentation. A popular fix using these tools is to map the right control key to the left ALT key, so you eliminate any interference caused by other functionality being mapped to the same key.
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