Kā var izmantot vietu uz "tukša" un svaigi formatēta zibatmiņa?

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Kā var izmantot vietu uz "tukša" un svaigi formatēta zibatmiņa?
Kā var izmantot vietu uz "tukša" un svaigi formatēta zibatmiņa?

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Anonim
Ja izdzēsīsiet visu no zibatmiņas diska un noformulēsit to, domājat, ka tā ir jāuzrāda kā pilnīgi tukša, kad to pārbauda, bet tas var ne vienmēr būt. Paturot to prātā, šodienas SuperUser Q & A ziņai ir atbilde uz sajaukt lasītāja jautājumu.
Ja izdzēsīsiet visu no zibatmiņas diska un noformulēsit to, domājat, ka tā ir jāuzrāda kā pilnīgi tukša, kad to pārbauda, bet tas var ne vienmēr būt. Paturot to prātā, šodienas SuperUser Q & A ziņai ir atbilde uz sajaukt lasītāja jautājumu.

Šodienas jautājumu un atbilžu sesija mums priecājas par SuperUser - Stack Exchange dalību, kas ir kopienas vadīta Q & A tīmekļa vietņu grupa.

Foto pieklājīgi no Adikos (Flickr).

Jautājums

SuperUser lasītājs Andrew vēlas uzzināt, kā tukšā un svaigi formatētajā zibatmiņā var izmantot vietu:

I recently purchased a SanDisk Cruzer CZ36 16GB USB 2.0 flash drive with FAT32 as the default formatting. I need to store files that are larger than four GB on this flash drive, so I decided to reformat the flash drive as NTFS. The flash drive also had some SanDisk SecureAccess software preloaded on it that I did not want. On my Windows 7 system, I right-clicked on the flash drive in Windows Explorer and selected Format. I did a full format by deselecting the Quick Format option.

After reformatting the flash drive, Windows tells me that it is not completely empty. If I right-click on the flash drive in Windows Explorer and select Properties, Windows gives me this information:

Why is this the case even though I just formatted the flash drive? Is this to be expected or are there some files still lingering on the flash drive? When I open the flash drive in Windows Explorer, no folders or files appear even though my system’s settings are configured to show hidden items. I find it worrisome that there is a total of 91.7 MB somehow being used on this supposedly “empty” flash drive.
Why is this the case even though I just formatted the flash drive? Is this to be expected or are there some files still lingering on the flash drive? When I open the flash drive in Windows Explorer, no folders or files appear even though my system’s settings are configured to show hidden items. I find it worrisome that there is a total of 91.7 MB somehow being used on this supposedly “empty” flash drive.

Kā tukšajā un svaigi formatētajā zibatmiņā var izmantot vietu?

Atbilde

SuperUser atbalstītājs David Schwartz ir atbilde mums:

This is normal. An “empty” NTFS file system has a number of internal files such as the master file table (“$MFT”), the log file used for file system recovery (“$LogFile”), the volume descriptor file (“$Volume”), and so on.

The largest one is probably the cluster allocation bitmap (“$Bitmap”) that keeps track of the space that is used and the space that is free. This is pre-allocated when the file system is created.

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