Microsoft has managed to fix an error in Windows Defender. The bug got many experts worried, which led the company to a quick solution.

The bug could potentially cause serious damages. In theory, a person who owns a Windows PC or any supported device could be attacked via email, even without them opening the mail, according to Engadget.

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Researchers from Google Project Zero were the first ones who discovered the software glitch. They have even categorized their discovery as "Windows remote code exec in recent memory."

Based on the experts' opinion, the bug could work against a default installation. It could even become "wormable," which means that it would be able to replicate itself on a targeted machine, then automatically spread itself to other Windows devices.

As of the current writing, Microsoft's Security Response Center and Windows Defender developers have provided a remedy to avoid any significant damages. A fix was created and is available for Windows 7, 8.1, RT and 10.

Meanwhile, the Windows Defender bug may not be the only significant glitch associated with Microsoft. Over time, the company has dealt with a number of Windows errors.

Windows 2000 users, in particular, experienced ridiculous system glitches, which requires them to create a password not less than 18,770 characters, according to MakeUseOf. Curious Reddit users even estimated that it would take 45 minutes for an average typist to enter this many characters.

Another error is when a software wouldn't launch because Windows is shutting down. In some worst scenarios, computers are prevented from shutting down until the user closes the program.

Check out other ridiculous errors that have affected Microsoft in the video below: