So, I finally got around to troubleshooting this elusive KB5058450 update failure, and honestly, it was a bit of a headache. The thing is, Windows updates can be unpredictable—sometimes they just refuse to install, and the error codes you get are about as helpful as a broken compass. Usually, it’s rooted in corrupted system files, or maybe some interference from third-party apps that mess with the update process. And of course, insufficient disk space or outdated drivers can throw a wrench in things.

Understanding Why KB5058450 Won’t Install (And How to Fix It)

In my case, after trying the usual reboot and re-downloading, nothing stuck. Turns out, the secret was poking around in the services and running some commands to fix corrupt or stuck components. It’s a bit messy, but here’s what finally worked for me. Just a heads up, clearing the TPM or messing with system components can lead to data loss, especially if you’re using BitLocker. Make sure you have your recovery keys backed up because, if you mess with TPM settings or reset the chip, you could lose access to encrypted drives. Be careful!

How to Check and Fix Windows Update Services

Getting into the Services Console

If you’re like me, the first step was to get into the Services panel. Hit Windows key + R, type services.msc, and press Enter. It pops up a window with a long list of all the core services your PC runs. Sometimes, these get disabled or stuck—especially after some failed update attempt or weird glitch. That’s usually the culprit.

Making Sure Essential Services Are Running Well

Pay special attention to Background Intelligent Transfer Service (BITS), Cryptographic Services, and Windows Update. If any of these are not set to Automatic, or if they’re stopped, that can definitely block your update. I’ve seen cases where they’re disabled for no good reason. So, right-click each one, check the Properties window, set the Startup type to Automatic, and click Start if it’s not running. After that, restart the service—the blue restart button is your friend here.

Restarting the Services (Maybe More Than Once)

Sometimes, just stopping and starting these services helps clear out glitches. I’ve had to do it a couple of times — especially on older or heavily modified setups. To do it quickly, open PowerShell as admin and run:

Restart-Service -Name bits, cryptsvc, wuauserv

If they refuse to restart, I’d reboot, then try again. Don’t just rely on doing it through the GUI—sometimes a fresh start is needed.

Further Service Checks: BITS, Cryptographic, and the Update Service

Restart BITS Directly

Since Background Intelligent Transfer Service is crucial for downloading updates in the background, it’s often the first thing I rebooted. If it’s hung, maybe after a failed update, just right-click in the services window and hit Restart. In PowerShell, it’s:

Restart-Service -Name bits

This can often unstick the update download process, which might be the main reason KB5058450 is stubbornly refusing to install.

Resetting the Cryptographic Service

This service manages all the digital signatures, certificates, and trust verification — and if it’s frozen, your update process can fail silently. I set its Startup type to Automatic and restarted it via PowerShell:

Set-Service -Name cryptsvc -StartupType Automatic
Restart-Service -Name cryptsvc

That helped Windows verify the update packages properly rather than rejecting them blindly. If this service is disabled or not running, the update just won’t verify, and you’ll see errors.

Fixing the Windows Update Service

This one’s a classic. Stop it, then start it again to clear any stuck update downloads or errors. PowerShell makes this easy:

Stop-Service -Name wuauserv
Start-Service -Name wuauserv

Or do a quick Restart-Service -Name wuauserv. Sometimes, this service just gets overwhelmed or corrupt, and a restart clears the backlog. If not, I recommend running the Windows Update Troubleshooter from Settings > Troubleshoot > Additional troubleshooters.

Deep Troubleshooting with SFC and DISM

Running System File Checker (SFC)

After the service stuff, I moved onto the good old SFC /scannow. Open Command Prompt or PowerShell as admin (right-click the icon, choose Run as administrator). Then type:

sfc /scannow

It’ll scan all protected system files for corruption and try to fix them automatically. It can take quite a while, sometimes 30 minutes or more. Honestly, it felt like forever, especially if it gets stuck at some percentage (20%, 50%, etc.). If it stalls or gives errors, don’t sweat—just run it again. Sometimes a second try will fix lingering issues.

Using DISM for Deeper Repairs

If SFC didn’t do the trick, DISM is your next step. It’s more intensive but often does the heavy lifting. Just type this in an elevated PowerShell:

DISM /Online /Cleanup-Image /RestoreHealth

This fetches files from Microsoft’s servers and repairs the system image. It’s not fast; it can take 15-30 minutes. Make sure your internet is working well, and don’t interrupt it. If DISM reports success, reboot, and then try to install KB5058450 again.

Honestly, this whole process is a bit of trial-and-error, but it saved me from completely resetting or reinstalling Windows. It’s kinda satisfying to see those errors clear up once everything is repaired.

In the end, fixing stubborn update errors like KB5058450 means being patient and methodical. Check those services, run SFC and DISM, and reboot after each step. Sometimes, just stopping and restarting the update services a few times does the trick. And if all else fails, you might need to consider resetting Windows components or even a clean install, but I’d try all the above first—they usually do the job.

Hope this helped — it took me way too long to figure it out. And don’t forget, always back up your data before messing with TPM or system components in case something goes sideways. Good luck, and may your updates finally install!

Quick checklist before wrapping up:

Anyway, hope this saves someone else a weekend wandering in update misery. Fingers crossed it finally works!