Dynamics 365 Unified Operations Platform Update 11 - failed in step 11

Dynamics 365 Unified Operations Platform Update 11 - failed on a sandbox environment in step 14 with the following error:

Start-Process C:\DynamicsTools\7za.exe -ArgumentList "x J:\DeployablePackages\432bcfed-4a5e-4b32-8e50-4aff2033e323\AOSService\Packages\files\dynamicsax-systemhealth-develop.7.0.4679.35176.zip -oJ:\AosService\PackagesLocalDirectory\SystemHealth -y -mmt" -RedirectStandardOutput C:\DynamicsAX\RunbookExecution-ExecuteParallelRunbook-432bcfed-4a5e-4b32-8e50-4aff2033e323_I0_R0\output\install-AXpackages_11152017093919-dynamicsax-systemhealth-develop.7.0.4679.35176-output.log -RedirectStandardError C:\DynamicsAX\RunbookExecution-ExecuteParallelRunbook-432bcfed-4a5e-4b32-8e50-4aff2033e323_I0_R0\output\install-AXpackages_11152017093919-dynamicsax-systemhealth-develop.7.0.4679.35176-error.log -Wait -WindowStyle Hidden -PassThru
7Zip failed to extract package Bin. At J:\AosService\PackagesLocalDirectory\InstallationRecords\dynamicsax-framework-bin.7.0.4679.35176\tools\installpackage.ps1:38 char:5
+     throw "$($_.Exception.Message)"
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7Zip failed to extract package Bin. At J:\AosService\PackagesLocalDirectory\InstallationRecords\dynamicsax-framework-bin.7.0.4679.35176\tools\dynamicspackagemanagement.psm1:104 char:9
+         throw "7Zip failed to extract package $packageName."
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

To solve this issue I navigated to
J:\DeployablePackages\432bcfed-4a5e-4b32-8e50-4aff2033e323\AOSService\Packages\files\ and
J:\AosService\PackagesLocalDirectory\SystemHealth and changed properties of these folders. Removed the read only flag and clicked on apply. It will ask for admin rights and if you check again the read only flag is still partely there. A resume of the package deployment worked well.