Now, copy the files inside the folder to the desktop. You can find them in “Local Disk (C:)” section of the Windows 8.1 Start Menu · 4. Copy the registry key to the desktop. The Registry key is: HELM\SOFTWARE\Policies\Adobe\ Reader [Adobe Reader 11/11-SP3] · 5. Now, start Adobe Reader. (Do so manually if it's an existing install; Adobe Reader will ask to install new features) How-To : How to install Acrobat Reader (SP3) without using any installation option: STEP 1: Extract the compressed file. STEP 2: Copy the extracted text to the user's main hard disc drive. STEP 3: Create a new file on the desktop called “HKEY_LOCAL_MACHINE” (without quotes). STEP 4: Change the value of the key: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\ Reader] Change the Value name to “Enable” Change the value of the key “UseDefaultMedia” to “No” Change “UseDefaultAudio” value to “No” You will have to repeat this process with each of the following Adobe Reader installers: Adobe Reader EXE · Adobe Reader DC It can be done in a few minutes, or you can add the following registry entries to your Registry Editor: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\ Reader] Subway “UseDefaultMedia” Type: REG_DWORD Value: 0×0 Subway UseDefaultAudio” Type: REG_DWORD Value: 0×0 · REG_WORD=value; Save the Registry entries. Save the text file named “HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\ Reader to the desktop. Then, if the files should be copied to the HDD, simply execute the following command from the Desktop: 'REG Shell;', The new Registry entries will start immediately when you launch the new executable.