Microsoft warns that a Windows 11 flaw could cause “data damage” on PCs with new CPUs that enable encryption methods.
Redmond has been opaque about the issue’s severity; but it can damage BitLocker.
Microsoft reports that the flaw affects Windows 11 computers running the latest Vector Advanced Encryption Standards instruction sets. AES-XTS or AES with Galois/Counter Mode (GCM) (AES-GCM).
These instruction sets can run BitLocker and Kingston storage programmes on later CPUs. Microsoft “added new code paths” to use encryption methods and created the flaw.
Microsoft hasn’t identified affected CPUs. A business document says Intel has used AES-GCM since 2010. Windows Server 2022 is also affected.
Microsoft released two patches in May and June to fix the issue; but they slowed Windows 11 PCs’ encryption speed by two times. BitLocker, Transport Layer Security (TLS), which encrypts web browser data, and disc throughput processes may see a speed hit, especially for enterprise customers.
This problem may have slowed PCs earlier this summer. Microsoft has released two further patches to remedy the originals; apply them immediately.
If you’re affected, install the May 24, 2022 preview release or the June 14, 2022 security release to prevent additional damage. After installing June 23, 2022 preview or July 12, 2022 security, performance will be restored, the business claimed.
Automatic Windows Update gives Windows 11 users the latest patches. They can also download Microsoft’s update.
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