The recommended method to convert these disks is to upgrade the operating system to Windows 10 first, then perform the MBR to GPT conversion. So 2k8 sounds like a no no even for an offline conversion.

This disk management software can convert MBR to GPT without losing any data. Check the table to learn how EaseUS Partition master makes MBR to GPT conversion safe and worry-free: ...

With Microsoft ending Windows 10 updates on October 14, 2025, millions of users must upgrade to Windows 11. This operating ...

This disk management software can convert MBR to GPT without losing any data. Check the table to learn how EaseUS Partition master makes MBR to GPT conversion safe and worry-free: ...

This disk management software can convert MBR to GPT without losing any data. Check the table to learn how EaseUS Partition master makes MBR to GPT conversion safe and worry-free: ...

Without GPT, Secure Boot cannot be enabled, blocking Windows 11 upgrades and some new games or software. EaseUS' Solution To address these challenges, EaseUS Partition Master offers a reliable and ...