Why extend C drive greyed out and how to fix

James, Posodobljeno: 18. septembra 2020

This article explains why the option to extend C drive greyed out in Disk Management and what to do when extend volume greyed out for C drive.

Velja za: Windows 10, Windows 8, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server 2012 (R2), strežnik za mala podjetja 2011, Windows Server 2008 (R2).

Boljše od starega Windows XP in Server 2003, Windows 7 and subsequent versions has new Shrink and Extend Volume functions built in Disk Management to help Resize particije brez izgube podatkov. V primerjavi s količino podatkov je sistemska particija C zelo verjetna zmanjkalo prostora. Bolje, če lahko povečajte prostor za pogon C ne da bi zapravili dolgo, da bi začeli znova. Če pa hočeš podaljšajte pogon C z upravljanjem diskov ne boste zadovoljni, saj je funkcija Extend Volume vedno osiromašena. Ta članek uvaja, zakaj možnost podaljšajte C pogon osivljen in kako odpraviti to težavo.

Zakaj je možnost za razširitev pogona C zaskrbljena v sistemu upravljanja diskov

Razlog 1: no Unallocated space behind C drive

Firstly, you should know that the size of a physical hard disk is fixed, before extending a partition, there must be Nerazporejen prostor. Unallocated is a kind of disk space that is not belong to any allocated partition. Besides creating new partition, it can be added to other partitions. To get Unallocated space, you may either delete or shrink a partition.

Many people shrunk D drive or any nonadjacent partitions, but Extend Volume always greyed out for C drive. As you see in the screenshot, I got 20GB Unallocated space after shrinking D drive, but the option to extend C drive greyed out.

Razširite glasnost osičeno

This is because that Extend Volume function can only extend Unallocated space to the levo sosednje particijo, vendar lahko Skrčalni volumen naredi le nerazporejen prostor na Pravica.

Nedodeljeni prostor, ki se je skrčil iz pogona D, je ne sosednji do pogona C, zato upravljanje diskov pogona C ni mogoče podaljšati s tem nedodeljenim prostorom.

Razlog 2: the adjacent D drive is Logical

If you don't want to use any third party software, the only way to extend C drive in Disk Management is by brisanje the right contiguous partition D. After deleting this partition, you'll get Unallocated space that is next to C drive, then Extend Volume will be enabled. If there is no such partition or you cannot delete it, Disk Management is useless.

However, only when the contiguous D drive is a Primarna particija, you can extend C drive by deleting D, otherwise, Extend Volume still greyed out for C drive. As you see in the screenshot, Extend C drive greyed out even after I deleting D and E drive.

Razširite glasnost osičeno

Razširite glasnost v sivi barvi

V upravljanju diskov prost prostor izbrisan iz logična pogona ni mogoče razširiti na nobenega Primarni partition, Unallocated space deleted from Primary partition can't be extended to any Logical drives. This issue only exists on MBR disk, all partitions on GPT disk are Primary.

Zakaj sistemski pogon C ne prikazuje možnosti razširitve glasnosti

Extend Volume feature is added from Windows Vista, torej v Windows XP in strežnik 2003, ko z desno tipko miške kliknete pogon C, ni možnosti za razširitev glasnosti.

Ni razširjene glasnosti

Kaj storiti, ko podaljšate prostornino osiromašeno za pogon C

Rešitev 1: premakni nedodeljeni prostor poleg pogona C

When the option to extend C drive greyed out is because that Unallocated space is ne-sosednji, move Unallocated space next to C drive in advance. To do this, you have to run third party software. NIUBI Partition Editor can accomplish this task fast and easily. It has free edition for Windows 10/8/7/Vista/XP domači uporabniki.

What to do when extend C drive greyed out after shrinking D or other volume:

  1. Prenos NIUBI Partition Editor, desni klik D: vozite in izberite "Resize/Move Volume", povlecite srednji položaj towards right in the pop-up window. Then Unallocated space is moved to the left side.
  2. Desni klik C: vozite in izberite "Resize/Move Volume"spet povlecite desna meja towards right in the pop-up window, then Unallocated space is combined to C drive.
  3. klik Apply on top left to take effect. Any operations before this step only work in virtual mode.

Watch the video how to operate.

Video vodič

Rešitev 2: resize volume with NIUBI editor

Če je desna sosednja particija D logična vozite, skrčite in naredite nedodeljeni prostor na levi strani ter ga nato združite v pogon C.

What to do when extend C drive greyed out because D is Logical drive:

  1. If you have not shrunk D drive, right click it in NIUBI Partition Editor in izberite "Resize/Move Volume", povlecite leva meja towards right in the pop-up window. Then you'll get Unallocated space behind C drive.
  2. If you have deleted it in Disk Management, create a new partition and follow step 1. Remember to click Apply uveljaviti.

Watch the video how to operate.

Video vodič

When extending C drive greyed out in Disk Management, find out the reason and follow corresponding method above. Besides shrinking, moving and extending partitions, NIUBI Partition Editor helps do many other disk and partition operations such as convert, copy, defrag, wipe, hide, scan bad sectors. Better than other tools, it has innovative Povračilo 1 sekund, Navidezni način, Odpovej se technologies to protect system and data. Because of the advanced premikanje datotek algorithm, it is 30% do 300% hitreje.

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