I have xampp with PHP 7.3.2 installed on Windows 7.
I extracted the zip file that I downloaded from Prestashop website and I extracted it; After doing that everything went fine except that on the "Store Installation" step I saw this error:
An error occurred during installation...
You can use the links on the left column to go back to the previous steps, or restart the installation process by clicking here.
1: Unable to write into "en-US"" (data layer : "PrestaShop\PrestaShop\Core\Localization\CLDR\DataLayer\LocaleCache")
Already tried to restart installation, deleting the whole folder and then re-extract the archive
Screenshot:
I think error happens at copy files start, it may be a permission files problem. Try to set read and write permissions to everybody on PS installation directory.
EDIT: In Windows 7 click right button mouse on folder and select Properties. Click on Security tab and here you can set users' permissions.
About install in a Flash Drive, FAT32 does not support permission management. Format it with NTFS or install on hard disk.