Win10 installation problem. lack of applessd.sys ?

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kerr28 Author

Level 1

8 points

Win10 installation problem. lack of applessd.sys ?

Hello,

I am trying to install win10 on a MacBook Pro,

after resized APFS container, and created the NTFS partitions for win10.

I can use WinPE USB stick to boot into Win10 Setup, but the problem is,

Win10 Setup can not find the SSD disk.

I tried various version of BootCamp, 5.1.5769, 5.1.5640, 5.0.5033), (unzip it and put contents on the root dir of WinPE USB root), but all failed because can NOT detect the SSD driver.

I checked those Boot camp drivers, it seems that it all does NOT include applyssd.sys, so,

I suspect this is the cause of problem.

where can I download those driver? or any detailed guide on how to install win10 ?

MacBook Pro info:

macOS Catalina 10.15.7

MacBook Pro 16' 2019

SSD: AP0512N

Thank you very much !

Posted on May 7, 2021 3:50 AM

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Answer 1

Best reply

Loner T

Level 9

59,471 points

May 7, 2021 4:50 PM in response to kerr28

kerr28 wrote:

My MacBook Pro model is: A2141.

Can you post the value of About This Mac -> System Report -> Hardware -> Model Identifier?

Where is Bootcamp 6.1 version download ?

Under BC Assistant -> Action -> Download. By default, BC Assistant will download the correct set of drivers and build the installer correctly in OSXRESERVED partition and boot from it, if you use BC Assistant to install W10. You do not need an external USB to install W10. A USB is needed for 2012-2014 models only.

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Answer 2

Loner T

Level 9

59,471 points

May 7, 2021 9:45 AM in response to kerr28

From Identify your MacBook Pro model - Apple Support, using Model Identifier 16,4 The Bootcamp drivers version is

ProductManufacturer>Apple Inc.</ProductManufacturer>
<ProductVersion>6.1.8034</ProductVersion>
<ProductCode>{FCFFE6B6-BAE8-490E-88D0-097A9DA1C43D}</ProductCode>

which has

If you provide the exact Model Identifier, I can check.

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Answer 3

kerr28 Author

Level 1

8 points

May 7, 2021 6:29 AM in response to Loner T

Thanks for the reply !

I can confirm that I download those BootCamp all from official website, e.g:

https://support.apple.com/kb/dl1837?locale=en_HK

and sha1sum of those zip:

20788e03d025b5a93a8f037f6d96865f5783e590 BootCamp5.0.5033.zip

2998a7881509a87b22abc6764379c0a33b6ced3a BootCamp5.1.5640.zip

52d29fe339815ad8c18c6839ee7bb37453d6c73b bootcamp5.1.5769.zip

and all NOT have folder: AppleSSD64.

$ ls bootcamp5.1.5769/\$WinPEDriver\$/

AppleBluetoothBroadcom64 IntelHDGraphics64 IntelPCIController IntelxHCISetup

(yes, only 4 dirs)

ls BootCamp5.1.5640/\$WinPEDriver\$/

AppleBluetoothBroadcom64 IntelHDGraphics64 IntelxHCISetup

(only 3 dirs)

ls bootcamp5.0.5033/\$WinPEDriver\$/

AppleBluetoothBroadcom64 IntelHDGraphics64

(yes, only 2 dirs)

//-------------------------------------------------------------------------------------------

Please, since I have some experiences on Linux, that WinPE boot stick is created

by Ubuntu Linux, not "Bootcamp Assistance".

Is that folder 'AppleSSD64' only created by using 'BootCamp Assistant' ?

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Answer 4

Loner T

Level 9

59,471 points

May 7, 2021 9:50 AM in response to kerr28

For Model 16,1, I have

<ProductManufacturer>Apple Inc.</ProductManufacturer>
ProductVersion>6.1.7748</ProductVersion>
<ProductCode>{FCFFE6B6-BAE8-490E-88D0-097A9DA1C43D}</ProductCode>

which has

Notice the dates on the files in both screen shots.

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Answer 5

kerr28 Author

Level 1

8 points

May 7, 2021 5:00 PM in response to Loner T

Thanks a lot !

Model Identifier: MacBookPro16,1

At last, I tried use "BootCamp Assistant" to install Win10.

on installation, it prompted that the BootCamp version should be: 7748.

After just few clicks, the Win10 successfully installed. (no steps need to choose to install which partition etc if using WinPE boot stick created under Linux).

Thanks you very much for solving my problem !

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