NVDA Portable is a freeware screen reader app filed under text to speech software and made available by NV Access for Windows.
The review for NVDA Portable has not been completed yet, but it was tested by an editor here on a PC and a list of features has been compiled; see below.
Audio screen reader for visually impaired PC users:
NVDA (NonVisual Desktop Access) is a free screen reader which enables blind and vision impaired people to use computers. It reads the text on the screen in a computerized voice. You can control what is read to you by moving the cursor to the relevant area of text with a mouse or the arrows on your keyboard.
NVDA can also convert the text into braille if the computer user owns a device called a %u201Cbraille display%u201D.Features and highlights
NVDA Portable is licensed as freeware for the Windows (32-bit and 64-bit) operating system / platform from text to speech software without restrictions. NVDA Portable 2018.4.1 is available to all software users as a free download (Freeware).
Compatibility with this screen reader software may vary, but will generally run fine under Microsoft Windows 10, 8, 8.1, 7, Vista and XP on either a 32-bit or 64-bit setup. A separate x64 version may be available from NV Access. This download is distributed as nvda_2018.4.1.exe.
We have tested NVDA Portable 2018.4.1 against malware with several different programs. We certify that this program is clean of viruses, malware and trojans.