Right-click on the main setup executable file (usually setup.exe ) and select .

In most cases, . If you downloaded your game from a verified, reputable repack site, this file is a legitimate tool required for installation. However, because it behaves like an unknown executable that modifies files and consumes high CPU/RAM resources, antivirus programs often flag it as a "False Positive" or potential malware. Common Reasons for the "Failed to Start" Error

If you did not intentionally download or install a program associated with cls-lolz x64.exe , proceed with caution and run a full antivirus scan immediately.

: Security software flags the decompression tool as a threat and quarantines it.

Corrupted Windows system files can prevent any executable from starting properly.

Many Windows executables rely on runtimes like Visual C++ and .NET Framework.

If none of the above steps work, the original repack file you downloaded might be permanently damaged or poorly made. Download the same repack from a different website or magnet link shared by another user. The problem may not be on your end, but with the file itself.

Check Windows Event Viewer

The most common reason for this error is that Windows Defender or a third-party antivirus has flagged cls-lolz x64.exe as a threat (often labeled as "HackTool", "Trojan", or "PUP") and deleted or quarantined it before it could run.

If you are looking for text to include in a help request or to understand the cause, you can use or adapt the following explanations: Common Causes

If the path contains special characters or is very long, the cls-lolz tool might fail to parse the string.

Look in your antivirus "Protection History" or "Quarantine" to see if cls-lolz x64.exe was blocked. If so, restore it and add it to the Exclusions list.