Disclaimer: You should always use legal software. Piracy harms developers. Wondershare no longer officially sells this version, but there are legitimate ways to access it.
The #1 risk. Because this software is abandoned, malicious actors often repackage the installer with Trojans, keyloggers, or crypto miners. If you see a 20MB "installer.exe"—it is 100% malware. The legitimate installer was approximately 180MB.
Modern Filmora has moved to a subscription model (Annual Plan or Perpetual, but with upgrade fees). Version 5.1.3 represents a time when a one-time "Full version" purchase was the norm. Users searching for "full version" cracks or old serials are often trying to avoid monthly fees.
If you purchased a perpetual license for Wondershare Video Editor (pre-2017), you can still download version 5.1.3 from your Wondershare Member Center. Login to your account and navigate to "Order History" or "Download Center."
Disclaimer: Wondershare no longer sells or supports version 5.1.3. Any "Full version" available on third-party websites (Torrents, Cracked forums, FileHippo archives) comes with significant risks.
This version does not support HEVC (H.265), ProRes, or 4K video. If you film on a modern iPhone or Android (HEIC/HEVC), version 5.1.3 will either crash or show a black screen.
Modern video editors require at least 8GB of RAM and a dedicated GPU. Wondershare Video Editor 5.1.3 runs smoothly on a machine with 2GB of RAM and an Intel Pentium processor. For schools, libraries, or users with netbooks, this is a lifesaver.