fake,low class, or, napuno memory ng files,try full format baka gumana pa:
Step 1. Type
cmd in the search box in Windows 10, and then you'll get the best match Command Prompt. Right-click on it and choose "Run as administrator".
Step 2. In the command prompt, type
diskpart and press "Enter".
Step 3. Type
list disk to list all the available drives and press "Enter".
Step 4. Type
select disk + disk number ( for example, select disk 2) to select the SD card you want to format and press "Enter".
Step 5. Type
list volume and press "Enter".
Step 6. Type
select volume + volume number (or example, select volume 10) and press "Enter".
Step 7. Type
format fs=ntfs (or format fs=exfat) and press "Enter" to format the drive with NTFS or exFAT.
Then, you can continue typing
create partition primary and
assign a letter and type
exit to close the program when DiskPart says it has successfully formatted the volume.