URL:https://i.dell.com/is/image/DellContent/content/dam/ss2/product-images/esupport/esupport-pages/supportassist-driver-scan-update-install.png
掲載元:https://www.dell.com/support/contents/ja-jp/article/product-support/self-support-knowledgebase/fix-common-issues/usb-ports-not-working