Below are the details and solutions to resolve this error:
1. Convert the Disk to GPT During Windows Installation
If you’re installing Windows in UEFI mode, your disk must use the GPT partition style instead of the older MBR format. Converting the disk to GPT ensures seamless installation, but this process will erase all existing data on the disk. Before proceeding:
Back up critical files to avoid permanent data loss.Use the Windows installer’s built-in tools (e.g., Command Prompt with diskpart or the MBR2GPT utility) to safely convert the disk without third-party software.
2. Convert Your MBR Disk to GPT (Without Losing Data)
The problem with traditional conversion methods is that they require deleting all partitions to rewrite the disk’s partition structure from scratch, which erases your data. This happens because MBR and GPT use fundamentally different ways to store partition information. However, Microsoft’s MBR2GPT.exe tool bypasses this limitation by:
Checking if the existing partitions and data can fit into GPT’s structure.Rewriting the disk’s metadata to GPT without modifying the actual data stored in partitions.Ensuring your system can boot correctly after the switch.
For a step-by-step guide to safely convert your disk without losing files, visit our tutorial: Convert MBR to GPT Without Losing Data
