Lock USB password-protects your USB and external drives in seconds and is the only product that keeps them locked on all operating systems including Windows/Mac/Linux and file systems like FAT32/NTFS/exFAT.
Your USB security solution, now optimized for mobile users!
Keeps your USB drive locked in all Operating Systems including Windows/Mac/Linux and works with most popular file systems like FAT32, NTFS and exFAT.
Lock USB is fast, fully portable, fully secure on all OSes, doesn’t require admin privileges to run, has plug and play and has other security features like saving lost and found info.
You can use it to prevent theft of your valuable data, leakage of data and privacy on your portable devices.
One of the most popular means of transporting large chunks of data involves the use of portable external drives such as USB flash drives or external hard drives.
However, despite their popularity, the biggest drawback is related to security – in other words, not having the option to password protect your external drive.
Think about it: PCs allow you to set up a username and password. This prevents other users from accessing your desktop, it's only logical that external drives come with the same option, yet this is not the case with external data storage devices.
Lock USB allows you to password-protect any USB flash drive or external drive.
Foolproof password protection for portable data. Installs directly into your external storage device.
Even if you end up losing your device, be it through misplacement or theft, you don’t have to worry about anyone stealing your data.
Lock USB is the only Windows-based software that offers cross-platform protection.
Secure your USB drive and protect your files by simply setting a PIN and clicking the LOCK button.
To access your files and unlock the USB drive, just enter your PIN and click the UNLOCK button.
Most USB drives and external hard drives come with no option for password protection, therefore anyone who happens to possess your portable drive will be able to access the data inside.
Oftentimes, we unintentionally save sensitive information on our external drives without even realizing it. Accordingly, since portable storage devices are often moved from one place to another, it also makes them prone to theft and loss.
If you end up losing your device, chances are high that someone will find your device and your data will be accessed. Thus, Lock USB prevents such incidents by password protecting USB drives.
| Feature | Description |
|---|---|
| USB-Based Installation | Lock USB installs directly onto the USB drive. A USB must be plugged in to proceed with installation. |
| Password Protection | Users can lock or unlock the USB by setting and entering a secure password. |
| Master Key Support | Enables alternative access via a master key. Requires enabling ‘Open with Master Key’ from settings. |
| Password Management | Users can change or update their password anytime through the interface. |
| Hack Attempt Protection | Includes protection against unauthorized access attempts and brute-force attacks. |
| Secure Locking Behavior | Once locked, the USB appears nearly empty (10–20 KB), hiding all files and disguising its true contents. |
| Real-Time Unlock | Upon entering the correct password, the full drive content is instantly restored and accessible. |
Before running the installer, ensure you have the following:
Summary
Safety checklist before running
How to investigate the file (step‑by‑step)
If you suspect malware
If you want, I can:
Based on the filename you provided (qtopensourcewindowsx865152exe), you have the offline installer for Qt 5.15.2, which is the last Long-Term Support (LTS) release of the Qt 5 series.
Here is a comprehensive guide on how to install and set up Qt 5.15.2 on Windows.
Qt Company stopped providing offline open-source installers for versions after 5.12. For 5.15.2 you must:
| Problem | Solution |
|---------|----------|
| “This app can’t run on your PC” | You downloaded the 32‑bit version? Re‑check x86_64 in the filename. |
| Compiler not found | During install, explicitly check MinGW or ensure Visual Studio is installed before Qt. |
| Qt Account nagging | Click “Skip” or use --offline mode next time. |
| Huge .exe size (50+ MB) | That’s normal. Use windeployqt to shrink dependencies. |
If you cannot use the online installer (air-gapped system, CI pipeline), you can build from source:
git clone https://code.qt.io/qt/qt5.git
cd qt5
git checkout 5.15.2
perl init-repository
configure -opensource -confirm-license -release -static -platform win32-g++
mingw32-make module-qtbase module-qtdeclarative
This produces qmake.exe and the full framework – but it requires MinGW, Perl, Python, and several hours.
First, ensure you've downloaded qtopensourcewindowsx86-5.15.2.exe from a legitimate source, preferably the official Qt website or a trusted repository.
Before running the installer, ensure you have the following:
Summary
Safety checklist before running
How to investigate the file (step‑by‑step)
If you suspect malware
If you want, I can:
Based on the filename you provided (qtopensourcewindowsx865152exe), you have the offline installer for Qt 5.15.2, which is the last Long-Term Support (LTS) release of the Qt 5 series.
Here is a comprehensive guide on how to install and set up Qt 5.15.2 on Windows.
Qt Company stopped providing offline open-source installers for versions after 5.12. For 5.15.2 you must:
| Problem | Solution |
|---------|----------|
| “This app can’t run on your PC” | You downloaded the 32‑bit version? Re‑check x86_64 in the filename. |
| Compiler not found | During install, explicitly check MinGW or ensure Visual Studio is installed before Qt. |
| Qt Account nagging | Click “Skip” or use --offline mode next time. |
| Huge .exe size (50+ MB) | That’s normal. Use windeployqt to shrink dependencies. |
If you cannot use the online installer (air-gapped system, CI pipeline), you can build from source:
git clone https://code.qt.io/qt/qt5.git
cd qt5
git checkout 5.15.2
perl init-repository
configure -opensource -confirm-license -release -static -platform win32-g++
mingw32-make module-qtbase module-qtdeclarative
This produces qmake.exe and the full framework – but it requires MinGW, Perl, Python, and several hours.
First, ensure you've downloaded qtopensourcewindowsx86-5.15.2.exe from a legitimate source, preferably the official Qt website or a trusted repository.
We value feedback and constructive criticism, it’s what enabled us to develop a product that has enjoyed immense success and positive reviews.
Likewise, if you have any questions or comments regarding Lock-USB, we would love to hear from you.
Simply drop us an email on
[email protected]
and we’ll get back to you within 24 hours or less.