Data Recovery

After a power cut, do not run CHKDSK or accept a format prompt immediately. Reconnect through a reliable port, check for clicking or unstable detection, then copy or recover files to a second disk before file-system repair.

Stop using the phone and remove the removable SD card. Check the phone cloud and Recently Deleted folders first; if necessary scan the card through a reader and save recovered photos to a separate disk. Internal phone storage is different.

Access denied can result from NTFS permissions, encryption, or a failing file system. Check the drive on its original computer and verify the owner; do not repeatedly change permissions or format. Back up readable files before any ownership changes.

If a used external disk suddenly becomes unallocated, do not create a new partition. Confirm the physical model, stop writing, and recover files or make a sector image on another disk. Rebuild partitions only after opening and verifying the recovered files.

Check the physical lock switch, free space, file permissions, and disk health. A drive that becomes read-only can be protecting itself from failure. Copy readable files first; do not force write access or run destructive DiskPart commands before backup.

Try a second cable, port, and computer; check Disk Management for the physical model and capacity. Do not initialize or format a previously used drive. If it appears stable, copy or recover files to another disk before repairs.

Stop taking photos and remove the SD card. Test a different reader without formatting. If the card is detected with the expected capacity, recover photos to a separate disk; a physically invisible card needs hardware diagnosis.

Find the 48-digit BitLocker recovery key in the Microsoft account, organizational account, printout, or backup before changing the volume. Recovery software cannot decrypt BitLocker without a valid key. Avoid formatting or clearing TPM settings.

Read SMART status and note reallocated, pending, and uncorrectable sectors, but a healthy indicator does not guarantee safety. If the drive clicks, disconnects, or slows sharply, stop repeated scans and make a backup or seek a specialist.

Two partitions can be normal after making a bootable USB. First identify the physical device and copy or recover any needed files. Only then delete partitions and create a single new volume with the built-in disk tool; this erases existing contents.