A1RunGuard icon

A1RunGuard

  2.20.2026.120
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
4.1
/ 9 ratings

The prime application to block unwanted programs and password-protect apps

Greatis Software | 2 more apps |
updated on January 21, 2026
Download for Windows
A1RunGuard is a bulletproof process blocker and password protector for PC applications. Designed mainly to block unwanted processes and background programs that eat up memory and bandwidth, A1RunGuard gives you the ability to reduce system resource usage.

If you want to maximize your computer’s security against ransomware attacks, A1RunGuard might be one of your best options. With its security features alongside its program blocking, it provides a skill set not many modern applications offer.

How does the process blocking work?

One of the standout features of A1RunGuard is its impressive process blocking. But how does it work? How can it help you get the best performance and security out of your computer?

Well, A1RunGuard is designed to intercept and block processes the moment you set a rule. The free version allows users to block up to 2 processes at a time, but with the Premium version, you can block as many as you like.

Password protection

With A1RunGuard, you get strong password protection for your programs. Not only your installed programs, but any executable file can also be protected and stopped from running. A program does not have to be installed to be blocked or protected. The file path is enough.

Ransomware protection

Using a regularly updated virus definition library, A1RunGuard knows exactly how the latest ransomware behaves, what processes it invokes, and how it spreads. It then intercepts the launch of these programs and stops them before they can do any harm to your computer.

How it detects such processes might be your next question. A1RunGuard utilizes the Windows Image File Execution Debugger method for that.

Lightweight and quick

The best part about A1RunGuard is that it will not slow down your PC. It does not rely on constant background monitoring, nor is it heavy software that will take a toll on your processor or memory.

A solid safeguard for process management

Despite a few disadvantages, such as a limit of 2 blocked processes on the free version, A1RunGuard delivers an impressive suite of features. If you are looking for this exact kind of program, it is a good option.

The Premium tier unlocks unlimited process blocking, API access, and import/export settings, while the highest Ultimate tier adds a full anti-malware database, custom YARA rules, and automatic malicious process blocking.

Note: A1RunGuard uses a freemium model with lifetime licenses available for the paid versions, and pricing may vary by region and plan.
Hamza Sadiq
Hamza Sadiq
App tester and reviewer
★★★★★
★★★★★

Pros

  • A full set of features for a security program
  • Impressive process blocking for executable files
  • Password protection
  • Ransomware protection

Cons

  • The free version only allows process blocking up to 2 processes of the user's choice
LicenseFree
Licence limitations• Maximum 2 user items
• No Import/Export of settings
• No API
• Can't restrict access to program settings
• Limited Anti-Malware database
Minimum requirements Windows 11/10/8.1/8/7, Server 2019/2016/2012/2008 (32-bit and 64-bit)
Previous versions
Operating systemWindows
Supported languagesDutch, English, German, Hungarian, Italian, Ukrainian
DownloadsTotal: 139
Last week: 0
Download for Windows