3C健忘人 - 疑難排除不求人 - no more ask for IT help

1. Search -> regedit.exe 2. My_Computer -> HKEY_LOCAL_MACHINE -> SYSTEM -> CurrentControlSt -> Control Add Key, name is StorageDevicePolicies and add DWORD under folder StorageDevicePolicies, its name is WriteProtect value is 1 (enable) 3. Reboot and copy a file to portable USB disk for testing, and it alarms write-protected and please remove protection mode 4. gpedit.msc Computer configuration -> Administrative Template -> All configuration  -> Removable Storage Write Access Refernces https://www.windowscentral.com/how-enable-write-protection-usb-devices-windows-10 https://www.lifewire.com/remove-write-protection-windows-10-8-7-4586905

Download link: http://isoredirect.centos.org/centos/8/isos/x86_64/CentOS-8-x86_64-1905-dvd1.iso for Taiwan: http://free.nchc.org.tw/centos/8.0.1905/isos/x86_64/CentOS-8-x86_64-1905-dvd1.iso http://mirror01.idc.hinet.net/centos/8.0.1905/isos/x86_64/CentOS-8-x86_64-1905-dvd1.iso http://ftp.twaren.net/Linux/CentOS/8.0.1905/isos/x86_64/CentOS-8-x86_64-1905-dvd1.iso Rufus USB booting disk https://rufus.ie / Supported updated via dnf program  

1.首先下載映像檔 https://itunes.apple.com/tw/app/macos-high-sierra/id1246284741?l=zh&mt=12 2.利用以下apple原廠建議方式製作入您放入的隨身碟 https://support.apple.com/zh-tw/HT201372 https://support.apple.com/en-us/HT201372 或 若為安裝10.8.x 之前的mac os，可利用掛載 .dmg 檔後，在開啟磁碟工具，選擇還原OS X Install ESD 到已先清除乾淨的外接隨身碟。此方式不適用10.9.x 版本 例如： http://osxdaily.com/2013/06/12/make-boot-os-x-mavericks-usb-install-drive/ https://www.lifewire.com/use-disk-utility-bootable-os-x-yosemite-installer-2259935 { 10.9.x以後 須先掛載如若10.11 ，掛載EI_CAPTAIN_INSTALL.dmg a. 點選.app, 按滑鼠右鍵顯示套件內容後，複製 Contents/SharedSupport/InstallESD.dmg (請注意大小寫）至桌面 b. 掛載 InstallESD.dmg， 按一下shift + command + .  ，來顯示隱藏檔。並複製其下層內容BaseSystem.dmg至桌面。 c. 再掛載 BaseSystem.dmg ，此時可利用復原方式復原回USB隨身碟。 d. 進入復原好的USB，並找到 System/Installation資料夾內的 Packages捷徑，並將其刪除，再從InstallESD.dmg掛載的下層資料夾Packages，複製到USB內的System/Installation，在複製InstallESD掛載下的BaseSystem.chunlist與BaseSystem.dmg兩個隱藏檔，一併複製至由BaseSystem.dmg 復原的USB磁碟 e. 這樣便可完成mac os 10.9.x 可開機光碟。} 其他利用Terminal指令方式，如2 s...