By skyforbes 
If you can’t download/detect/install Windows Updates because of Fix Service registration is missing or corrupt error in Windows 10, here is the way to alter it manually.
In our past, we shared you some normal methodologies in following articles that can help you to alter issues with respect to Windows Updates:
· Reset Windows Update segments manually
· Running Windows Updates troubleshooter
· Applying various fixes
As of late, in the wake of running Windows Updates troubleshooter on one of our Windows 10 running machine, we came around an alternate mistake. Here is that one:
Service registration is absent or corrupt (Not settled)
As should be obvious in the above indicated picture, the mistake has been detected by troubleshooter however it couldn’t be settled. In this way to alter issue with Windows Updates, we need to determine this particular issue — manually.
In the event that you accentuate on the message, it unmistakably demonstrates that the issue is brought about by some root services required to let Windows Updates work. You can attempt these fixes and check whether they help you to conquer this issue.
Solution 1 — Start Windows Updates Related Services
In the event that the whole base services identified with Windows components is working legitimately, there is a possibility that this issue can be bypassed. To guarantee this, follow:
1. Press W8K + R and sort services.msc in the Run discourse box, hit Enter key to open Services snap-in.
1. Services Windows 10
2. In the Services window, look down to search for Windows Update service. Since you’re confronting issue with relating highlight, the service may not run. You can right tap on the service and select Start. Additionally ensure that service has Manual or Automatic as Startup Type.
3. Repeat step 2 for different Windows Update reliance services like Cryptographic Services and Background Intelligent Transfer Service.
We trust the issue ought to be settled by beginning these services. Nonetheless, if the issue returns, you ought to repair Windows Updates required files also using strides specified in FIX 2.
Solution2 — Repair Windows Updates Related and Other Corrupted System Files
Windows sets up a picture of your installation to the extent system files are concerned. While these files got corrupted or missing, the system picture is additionally gets corrupted and it broken the OS usefulness. You can attempt these ways to deal with repair system files:
1. System File Checker is one of the inbuilt usefulness of Windows OS that helps you to scan trustworthiness infringement and settle them, assuming any. Here is the connection to investigate more about it:
Ventures to run System File Checker in Windows OS
2. If the issues are past the extent of System File Checker, you can run DISM charges to settle your Windows machine picture.