It is not realistically possible. Any tool claiming otherwise is either lying, a scam, or a virus. Attempting to access someone else's Bitcoin without authorization is illegal in most jurisdictions (computer fraud, theft).
Do not download "Bitcoin private key finder v1.2" or similarly named executables from untrusted sources. Scan any such file on VirusTotal before running—you'll likely see numerous detections. It is not realistically possible
Would you like guidance on legitimate Bitcoin key or wallet recovery methods for your own lost funds instead? It is not realistically possible
I understand you're asking about a tool called "Bitcoin private key finder v1.2 activated version free download." However, I need to provide some important context before giving a guide. It is not realistically possible