Fix MSSIPOTF_E_BADVERSION 0X80097015 – Quick Steps

MSSIPOTF_E_BADVERSION – What You're Seeing

That error pops up when Windows tries to verify a digital signature on an installer, usually an .msi or .exe file, and finds the version number in the signature is wrong. It's like a seal that's been broken — Windows won't trust the file.

I've hit this with all sorts of software, but it's most common with old installers downloaded from sketchy mirrors, or when you're trying to run something that was signed years ago on a newer Windows version. One client last month got it trying to install a 2012-era printer driver on Windows 11. The file was fine, but the signature just didn't match what Windows expected.

Here's how to fix it. Start with the first one, it takes 30 seconds. If that doesn't work, move on down.

Fix 1: The 30-Second Check – Re-download or Clear Browser Cache

Half the time the file is corrupt before you even run it. Browsers love to cache partial downloads. Don't bother with the same file from the same place — that's how you get the same error.

Delete the installer you already have.
Clear your browser cache or use a different browser.
Download the file again, ideally from the official vendor site. Not a random mirror.
Right-click the file, select Properties, and look at the Digital Signatures tab. If it says the signature is invalid or has a problem, you've confirmed the issue.

This is the fix that works for most people. It's boring, but it's real. If the error's still there, the file itself might be fine, but Windows is being picky — move to Fix 2.

Fix 2: The 5-Minute Fix – Run Windows Update and Check System Time

Signatures depend on certificates, and certificates depend on your system clock being right. I can't tell you how many times I've seen a date set to 2015 cause this exact error. Windows thinks the signature expired or isn't valid yet.

Check your date and time: Right-click the clock, choose Adjust date/time. Toggle Set time automatically and Set time zone automatically. If they're already on, turn them off, set the right time manually, then turn them back on. This forces a re-sync.
Run Windows Update. Go to Settings > Update & Security > Windows Update and hit Check for updates. Let it finish, even if it takes a few minutes. This updates the certificate trust list, which can fix signature verification issues.
Reboot and try the install again.

If that didn't do it, the problem might be deeper — the file's signature is actually broken, or Windows has a corrupted cryptographics service. That's Fix 3.

Fix 3: The 15+ Minute Fix – Reset Cryptographic Services and Use DISM

This is the advanced one. I only do this if the above fails, because it's more invasive. But it's also the only thing that works when Windows itself is flaking out.

Step 1: Reset the Cryptographic Service

This service handles signature verification. If it's stuck, you'll get this error on every signed file, even ones that worked before.

Press Win + R, type services.msc, press Enter.
Scroll down to Cryptographic Services. Right-click it and select Restart.
If it won't restart, double-click it, set Startup type to Manual, click Stop, then Start.

Now try the install again. If it still fails, your system files might be corrupt.

Step 2: Run DISM and SFC

These tools check and fix Windows system files. DISM goes first because SFC needs a healthy foundation.

Open Command Prompt as Administrator. Right-click the Start button and choose Command Prompt (Admin) or Windows PowerShell (Admin).
Run this command, and wait. It'll take a few minutes, but let it finish:

dism /online /cleanup-image /restorehealth

Once that's done, run this:

sfc /scannow

Restart your computer. That should clear up any underlying file corruption.

If you're still seeing the error after all that, the installer itself is bad. Don't fight it — go get a fresh copy from the vendor, or contact their support. Sometimes a file gets signed with a tool that's out of date, and no amount of Windows fixing will change that.

Alternate Route: Skip Signature Verification (Not Recommended)

There's a hack to bypass signature checks, but I'm not giving it to you. It's a security hole you don't want to poke. If you're getting this error on a legitimate program, the steps above will sort it. If it's on something you downloaded from a torrent site, well, that's a sign from the universe.

Final Thoughts

MSSIPOTF_E_BADVERSION is an annoying error, but it's not the end of the world. Start with the re-download, check your clock, and only then get into the system repair stuff. In my experience, that fixes 90% of cases. The rest are just stubborn files that need a fresh copy.