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#41
Choosing not to use Windows Security should have ZERO impact on the rest of the operating of Windows. The error messages you receive are, believe or not, sometimes down to Microsoft not doing things properly and mistakes being made in rolling out updates. If you Google the last error code you got it pertains to missing and/or corrupt files in the update process. The files are coming from Microsoft to begin with and so the issue is not you. Your update client (Windows Update) is contacting Microsoft servers and is being instructed to download files but upon downloading them is finding errors. The first error code pertains to what appears to be an issue with .NET Framework.
Thankfully none of these issues have anything to do with disabling Windows Security. Microsoft began rolling out changes to Windows which made sure people could take more control over the security of their systems, at least in terms of choosing what antivirus protection they wanted, removing the possibility of conflicts between Windows Security and third party solutions etc some time ago. This is because historically Windows Security got in the way a lot of the time. Now you can disable it completely and you shouldn't face any issues as a result of doing this.
I would recommend you create a .reg file with the opposite values of the ones already set in case you want to revert changes. It's just a case of changing 1 to 0 and 4 to 2 respectively. That way you can instantly revert the changes should you want to and if you do face any issues which might require you to test to see whether these registry entries affect something. Like I said, they probably won't but when you're making pretty critical changes to your system like this you should ALWAYS ensure you have a backup of the original configuration. You can do this by going to regedit, finding the entry(ies) and then exporting them. You should do this BEFORE you make any changes, otherwise you'll just be making copies of the changes you've already made. Another way is, like mentioned above, create your own .reg file which reverts the changes you've made. You could even go so far as to create a script (batch script for example) to automate this process. This is good administration practice above anything else and it ensures if you mess up you have a backup plan, literally. So many people make serious changes to their system and when and if things get complicated and/or messed up they have no idea how to change things back.
When using the registry ALWAYS back up whatever it is you are changing first. Create copies of the changes. And/or create a solution for reverting back should you need to.
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