| Problem | Solution | | :--- | :--- | | "Missing API-MS-WIN-CRT" error | Install Visual C++ Redistributable Packages (2012–2022). | | OCR grayed out / not working | Ensure the ocr folder exists in the portable directory. Some Lite builds remove OCR to save space. Find a full Lite build. | | Cannot save edited PDF | The PDF may have "Reader Extended" permissions. Use "Save As" to a new filename. | | Portable printer missing | Run InstallPortablePrinter.bat (if included) from the folder as Administrator. | | Language didn't change | The Lite version may have removed the language pack. Download a "Multilingual Full Lite" version. |
| Safe indicator | Danger sign | | :--- | :--- | | File size between 150MB–250MB | File size under 50MB (likely a stub downloader) | | Extract and run without an "installer" | An .exe called "Setup.exe" or "Loader.exe" | | Hash matches known clean releases (CRC32: 3E3F4B2A) | Requires disabling Windows Defender to open | | Launches Acrobat directly | Opens a web browser asking for a survey | Adobe Acrobat XI Pro Lite 11.0.13 Multilingual Portable