When manually creating a new virtual machine in Parallels Desktop version 26, the Apply button may appear greyed out when resizing the virtual hard disk during customization.
As a workaround, you can manually set the desired virtual hard disk size before installation by following these steps:
- Select Customize settings before installation, then click Create.
- In the virtual machine configuration window, go to the Hardware tab, select Hard Disk, click the – button at the bottom, and choose Move to Trash.
- Click the + button at the bottom and select Hard Disk.
- Keep Type as New Image File and leave the Location unchanged. Set the preferred disk size and click OK.
- Close the configuration window and proceed with the installation.
After completing these steps, the virtual machine setup should proceed normally with the updated hard disk size.
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