File systems and conversion
Convert MBR data disk to GPT
GPT is preferred for modern large disks and UEFI systems; converting a data disk differs from converting the Windows boot disk.
13 practical guides
MBR, GPT, NTFS, FAT32 and disk conversion
Pick appropriate file systems and partition styles for each device.
Start with your disk layout and backup
Choose the guide that matches your exact Windows storage issue. Review filesystem, disk model, BitLocker status and the Free/Pro feature limits before performing changes.
File systems and conversion
Convert GPT data disk to MBR
MBR is sometimes needed for older devices but is limited in partition count and practical disk size compared with GPT.
File systems and conversion
MBR vs GPT for Windows 11
GPT with UEFI is the normal choice for Windows 11 system disks; MBR is mainly relevant to legacy boot setups and older devices.
File systems and conversion
FAT32 vs NTFS vs exFAT
NTFS fits most internal Windows volumes; exFAT is useful for portable media; FAT32 offers broad compatibility but has a 4 GB maximum single-file size.
File systems and conversion
Format a partition as NTFS
NTFS provides Windows permissions, journaling and support for large files; formatting replaces the volume's file system metadata.
File systems and conversion
Format external drive as exFAT
exFAT is commonly useful when a removable drive must carry large files between compatible devices.
File systems and conversion
Convert FAT32 to NTFS without formatting
Windows and partition tools may convert FAT32 to NTFS while retaining files, but any file-system conversion should begin with a backup.
File systems and conversion
Select cluster size for NTFS
Cluster size determines allocation granularity; default values are generally appropriate unless a workload has documented requirements.
File systems and conversion
Fix a RAW partition
A RAW volume means Windows cannot recognize a usable file system there; it does not prove the data has been deleted.
File systems and conversion
Initialize a new disk as GPT
Initializing a blank disk creates partition-table metadata, and GPT is normally the appropriate default for modern Windows PCs.
File systems and conversion
Understand EFI system partition
The EFI System Partition contains files used for UEFI boot; it should not be treated as spare storage.
File systems and conversion
Understand Microsoft Reserved partition
The Microsoft Reserved partition, or MSR, is a small GPT system partition used by Windows and should ordinarily remain untouched.
File systems and conversion
Understand Windows Recovery partition
Windows Recovery Environment commonly uses a dedicated partition; deleting it can prevent local repair and reset workflows.