An updated version of the Client OS MP has been released, 6.0.7251.0 can be found here

New in this version:

• Changed discovery of Win 8 client computer and Win 8 client OS data sources to fix the issue with discovering Win 10 computers by Win 8 MP. Instead of registry provider now we use registry and WMI to find version of the OS
• Added Alert Messages to the following monitors: CPU Percentage Utilization, CPU DPC Time Percentage, CPU Percentage Interrupt Time
• Added a group populator for Win 8.1 Business Critical group
• Fixed Windows 8 Aggregate Physical Disk Discovery
• Fixed Discover Network Adapters (Only Enabled) and Discover Network Adapters (Both Enabled and Disabled) discoveries

Fixed Windows 8 MP Aggregate reports failure issue occurring while running reports under standard service account by granting appropriate permissions in Install and Upgrade sections scripts of DW datasets