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Fix Windows Security High CPU Usage: Practical Steps - Troubleshoot 0x80070643 Windows Security Offline Install-Extend RDP Session Timeout via Registry

2026-06-14 09:12:40

Fix Windows Security High CPU Usage: Practical Steps - Troubleshoot 0x80070643 Windows Security Offline Install-Extend RDP Session Timeout via Registry

Result check

Keep one change per test run so you know which step helped.
Undo temporary changes after the issue is confirmed.