I want to help you understand what’s happening with the ReFS file system bug in Windows Server 2025. If you run servers, you might have seen your system slow down or even stop working because of high CPU and RAM use. This can be scary, especially when you need your server to work all the time. Let’s look at what’s going on, why it matters, and what to expect next.
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What Is the ReFS Bug?
ReFS stands for Resilient File System. It’s a way for Windows Server 2025 to store and protect your data. Microsoft says ReFS helps keep your files safe, checks for problems, and fixes errors by itself. It’s supposed to be better than the older NTFS system in some ways.
But there’s a problem. When you use ReFS disks with Windows Server 2025, the computer can start using too much CPU and RAM. Sometimes, it uses so much that the server slows down a lot or even stops working. The only way to fix it is to restart the server. This isn’t good for anyone who needs their server to stay up and running.
How Did People Find Out?
People started talking about this bug online. One person, Daniel A., wrote about it in May 2025. He said his server kept using more and more CPU and RAM until it crashed. Others saw the same thing. Some backup software companies, like Veeam, also noticed the bug and talked to Microsoft about it.
What Is Microsoft Doing?
Microsoft knows about the bug. They talked to Veeam and even gave some people a special patch to test. This patch isn’t out for everyone yet. Some users in forums said they got the patch early and it helped fix the problem.
When Will the Fix Be Ready?
People hoped the fix would come in the May or June updates, but it didn’t. There’s no fix in the July update either. But there’s good news. Some users and Microsoft support staff say the fix should come out for everyone in August 2025. The update is called KB9178699, but there isn’t a public help page for it yet.
What Should You Do Now?
- If your server uses ReFS and is having problems, you might need to restart it sometimes to keep it working.
- Watch for the August 2025 update. That’s when the fix should be available for everyone.
- If you use Veeam or another backup tool, check their forums or support pages for news about the patch.
- Keep your server updated. When the fix comes out, install it as soon as you can.
Servers need to work all the time. If they stop because of a bug, it can cause big problems for your business. Fixing this bug will help you trust your server again and keep your data safe.
Stay patient and keep checking for updates. The fix is coming soon, and your server should work better after you install it. If you need help or have questions, ask your backup software provider or check Microsoft’s support forums. You’re not alone, and a solution is on the way.