Boot Camp Windows 10 storage usage incorrect information

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Level 1

12 points

Boot Camp Windows 10 storage usage incorrect information

Hi,

I have a late 2015 MacBook Pro with 500g of ssd. I have Windows 10 fully running and allocated about 250g for it. But when I go to storage usage in settings, it shows that my C: drive is 698g. I have also checked disk management and command prompt, but it looks like everything is normal. In addition, I also repaired the disk both in mac os recovery mode and in Windows, but it didn't work.

Recently I have used camptune to increase the boot camp partition size by 100g, and I highly suspect that this might be the problem, but I have not found a solution.

Thanks

MacBook Pro with Retina display, OS X El Capitan (10.11.6)

Posted on Sep 9, 2016 3:25 PM

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Answer 1

Loner T

Level 9

59,536 points

Sep 9, 2016 3:33 PM in response to yq66

Can you post the output of

diskutil list

diskutil cs list

and

Windows Disk Management.

You may need chkdsk on the Windows side.

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Answer 2

yq66 Author

Level 1

12 points

Sep 9, 2016 4:10 PM in response to Loner T

Thank you for your reply,

I have here the disk management screen, I will go over to Mac os side in a minute for diskutil

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Answer 3

yq66 Author

Level 1

12 points

Sep 9, 2016 5:17 PM in response to Loner T

Sorry for the delay, had to take care of baby.

I also ran chkdsk and got those results:

Windows has scanned the file system and found no problems.

No further action is required.

244312063 KB total disk space.

145744204 KB in 426767 files.

228092 KB in 36095 indexes.

0 KB in bad sectors.

665351 KB in use by the system.

65536 KB occupied by the log file.

97674416 KB available on disk.

4096 bytes in each allocation unit.

61078015 total allocation units on disk.

24418604 allocation units available on disk.

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Answer 4

yq66 Author

Level 1

12 points

Sep 9, 2016 5:22 PM in response to Loner T

Results of diskutil cs list:

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group xxxxxxxxxxxxxxxxxxxx

=========================================================

Name: Macintosh HD

Status: Online

Size: 249241534464 B (249.2 GB)

Free Space: 11665408 B (11.7 MB)

|

+-< Physical Volume xxxxxxxxxxxxx

| ----------------------------------------------------

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 249241534464 B (249.2 GB)

|

+-> Logical Volume Family xxxxxxxxxxxxx

----------------------------------------------------------

Encryption Type: None

|

+-> Logical Volume xxxxxxxxxxxxxxxx

---------------------------------------------------

Disk: disk1

Status: Online

Size (Total): 248877547520 B (248.9 GB)

Revertible: Yes (no decryption required)

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

And these are the results of diskutil:

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *500.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage Macintosh HD 249.2 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 250.2 GB disk0s4

/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD +248.9 GB disk1

Logical Volume on disk0s2

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Answer 5

Loner T

Level 9

59,536 points

Sep 9, 2016 6:22 PM in response to yq66

Are you looking at Storage Settings in About This Mac -> Storage? It has several reporting issues. The CS is just a container for the HFS+ file system.

Based on what you have posted so far...

500 x 1000 x 1000 = GB

5,00,000,000 / (1024 * 1024) = 476.837158 GiB

The C: Properties of 698GB is incorrect, because CampTune has changed System Volume Information.

Chkdsk is reporting the correct size. This matches the Disk Management numbers.

244312063 KB total disk space.

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Answer 6

yq66 Author

Level 1

12 points

Sep 9, 2016 6:49 PM in response to Loner T

I actually looked in windows->settings->storage usage, and it displayed my drive as 698g, which is false but everywhere else the info about my drive is correct.

So is it just a program glitch that Camptune caused while shrinking my mac partition and increasing the bootcamp partition? I haven't figured out how exactly camptune works yet.

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Answer 7

Loner T

Level 9

59,536 points

Sep 9, 2016 7:05 PM in response to yq66

yq66 wrote:

So is it just a program glitch that Camptune caused while shrinking my mac partition and increasing the bootcamp partition? I haven't figured out how exactly camptune works yet.

It is moving the NTFS header, resizing the partitions, and restoring boot related files. You should raise the issue with Camptune. The updates to System Volume Information are incorrect.

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Answer 8

yq66 Author

Level 1

12 points

Sep 9, 2016 7:50 PM in response to Loner T

Ok, thanks for your help!

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