Don’t trust us. Verify us.
Our apps change Windows settings, so you should be able to check exactly what you downloaded before you run it. Here’s how — with the real hashes for every published release.
1 · Check the SHA-256 hash
This is the strongest check: if the hash of your file matches the one below, it is byte-for-byte the file we published. In PowerShell:
Get-FileHash "$env:USERPROFILE\Downloads\MEGA.exe" -Algorithm SHA256
Compare the result with the table below. If it’s different, don’t run it — delete it and tell us.
2 · Look at the signature
Our installers are signed as Astrix Software — right-click the file → Properties → Digital Signatures. Certificate thumbprint:
7831ECC4A3CDCA560031EC58211BDEC3D7E45FF5
Honest note: it’s a self-issued certificate, not one bought from a certificate authority. That’s why Windows can still say “Unknown publisher”. A matching thumbprint shows the file came from us unchanged, but the hash above is the check that really counts.
3 · Scan it yourself
Every row in the table links to that exact file’s VirusTotal page (looked up by hash). You can also upload the file there to scan it with 70+ engines.
Optimizers edit the registry and services, so a few engines sometimes flag them by behaviour. Look at which engines flag it and why — and if a major engine names a specific threat, don’t run it. Report it to us instead.
Reviewed by Microsoft Security Intelligence — no detection
After a few antivirus engines flagged an earlier MEGA build, we sent it to Microsoft’s Security Intelligence team as an incorrect detection. Their analysts’ finding, on 13 October 2026: their scanners showed no detection, and they had no threat telemetry for the file, so the case was closed with no action needed.
Today’s download too: MEGA 1.4.9 — the exact published file, SHA-256 48eb3b77…03be1d2e — scanned with Microsoft Defender on 23 October 2026 (security intelligence 1.461.167.0): no threats found.
Honest note: these are Microsoft’s analysis of the build we submitted and a Microsoft Defender scan of the current one — not an endorsement or certification (Microsoft doesn’t “approve” apps). Every release is a new file, so check yours with the hash, signature and scan steps above.
If Windows SmartScreen or Defender warns you
- SmartScreen (“Windows protected your PC”) warns about files that haven’t been downloaded by many people yet. Every new release starts with no reputation, so this warning is common for new versions — but it isn’t proof either way.
- Before choosing to run anyway: check the hash against this page, check the signature thumbprint, and look the file up on VirusTotal. Only run it if all three check out.
- If Defender quarantines or names a threat, don’t restore it. Message us on Discord with the file name, the detection name and your hash — we’ll investigate and publish what we find.
Current releases
| Product | File | Version | Size | Published | SHA-256 | Scan |
|---|---|---|---|---|---|---|
| Loading the published release list… | ||||||
Known issues
- New releases trigger SmartScreen until enough people have downloaded them (see above).
- Astrix Optimizer: at its default window size the dashboard can cut off its right edge. Maximise or resize the window — a fix is planned.
- Astrix Sentinel isn’t released yet: we’re holding it until a crash in its Hardening tab is confirmed fixed.
Found something else? Tell us on Discord and it goes on this list.
Privacy
- No telemetry, ads or trackers of our own — in the apps or on this website.
- The apps go online only to: activate a licence (once), check for updates, run tests you start (speed, DNS, ping), and — only if you choose to sign in — sync MEGA settings with Google.
- Anti-tamper: if Astrix Optimizer detects it has been cracked, it sends one anonymous signal — a one-way hash of the machine ID and the app version. Nothing else.
- Payments are handled by Stripe; we receive your email so we can send your licence key.
- This site counts download-button clicks (a number only).
The full list of what MEGA sends and stores is in our privacy policy.
Support & security reports
- Help, bugs and feature ideas: the Astrix Discord.
- Security issue or suspicious detection? Message us privately on Discord — please don’t post exploit details publicly. Include the app, version, file hash and what you saw.
- Every change is in the changelog, and every tweak’s exact registry or command change is on the transparency page.