[SOLVED] Windows Defender can't change some of your settings. Error code (0x8007045b)

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Seems to me that there are a lot of corruptions in the system, including the registry. The use of a not activated OS, the many antivirus programs not properly uninstalled, along with the use of the Tweaking.com and perhaps CCleaner, caused this mess.

The settings.txt file with the result is located here: C:\WINDOWS\system32\settings.txt
 
I'll need some time, Mikuro, for the next steps.
 
Something we didn't try yet:

In-place upgrade

This will reinstall and update the operating system and fix any corruptions, without removing any file or program.

• Go to this Microsoft page and under the title Create Windows 10 installation media press on Download tool now.
• Save the tool on your Desktop and double click to run it.
• On the License terms page, if you accept the license terms, select Accept.
• On the What do you want to do page, select Create installation media (USB....) and then select Next.
• Choose the ISO file option. Once the download is complete, right click the ISO and select the option Mount.
• Open the Windows File Explorer and open mounted ISO, and run the setup.exe file.
• Follow the instructions and click on the option Change what to keep.
• Select the option Keep personal files and apps and click Next.
• Windows Setup will now start the in-place upgrade installation to repair Windows.


Let me know if the problem persists.
 
DR M!
I am delighted to tell you that the firewall is now on. I did an inplace upgrade before and my problem was not fixed. But through your additional steps and in place upgrade, my firewall is now on. Please provide me cautions, tips, or whatnot that you can give me. I would also like you to suggest a free antivirus software as we removed every antivirus I got. I will check if the MS Store is behaving properly as well as other apps related to it. Thank you so much for your time and effort DR M!

-So far, everything looks great, do i have apps that I need to uninstall?
 
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DR M!
I am delighted to tell you that the firewall is now on.

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So glad to hear this!!!!

Let me know if Snip and other Microsoft apps works fine now.

I would also like you to suggest a free antivirus software as we removed every antivirus I got.

You don't need any 3rd party antivirus. Windows Defender is the built-in antivirus and it is pretty good. Together with Malwarebytes, if you run it occasionally, can keep you safe, without creating issues.

Before removing anything, please, let me check fresh FRST logs.
 
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So glad to hear this!!!!

Let me know if Snip and other Microsoft apps works fine now.



You don't need any 3rd party antivirus. Windows Defender is the built-in antivirus and it is pretty good. Together with Malwarebytes, if you run it occasionally, can keep you safe, without creating issues.

Before removing anything, please, let me check fresh FRST logs.
Snip and Sketch and other apps work fine now!
But what other essential apps do you think I should have on my system?
Thank you so much for your time and help!
 
If you are asking about security, you don't need to install anything else.

Please, post the FRST logs in your next reply.
 
Thanks! (y)

Just letting you know that I'll be away from the computer for the next 4 hours. Hence, I'll be with you later tonight.
 
Hi, Mikuro.

Everything looks good.

If no other question...

The following tool will remove the tools we used as well as reset system restore points:

Download KpRm by kernel-panik and save it to your desktop.
  • Right-click kprm_(version).exe and select Run as Administrator.
  • Read and accept the disclaimer.
  • When the tool opens, ensure all boxes under Actions are checked.
  • Under Delete Quarantines select Delete Now, then click Run.
  • Once complete, click OK.
  • A log will open in Notepad titled kprm-(date).txt.
  • Please copy and paste its contents in your next reply.

Note: If there is a warning about this tool, go on to download it, since it is a false/positive. Choose More info and continue from there.
 
Perfect!

What other steps should I take?

No other steps. :-)

Now your computer is clean, here are some final tips about your computer's security from now on:

Some of the following, are from Klein's (2005) article, So how did I get infected in the first place. Since then, the article has been reproduced or linked to in dozens of locations. As a result, many malware experts have continued updating it, to include current operating systems and software program information. My source is Security Garden, and I marked for you the following:

1. Keep your Windows updated!
It is important always to keep current with the latest security fixes from Microsoft. This can patch many of the security holes through which attackers can infect your computer.

2. Update 3rd Party Software Programs
Third Party software programs have long been targets for malware creators. It has been stated that "Adobe’s Reader and Flash and all versions of Java are together responsible for a total of 66 percent of the vulnerabilities in Windows systems exploited by malware.'' It's important to keep everything updated.

3. Update the browsers you use
Many malware infections install themselves by exploiting security holes in the Internet browser that you use. So... Keep them updated.

4. Be careful about what you download and what you open!
  • Many "freeware" programs come with an enormous amount of bundled spyware that will slow down your system, spawn pop-up advertisements, or just plain crash your browser or even Windows itself. Watch for pre-checked options such as toolbars that are not essential to the operation of the installed software.
  • Peer-to-peer (P2P) programs like Kazaa, BearShare, Imesh, Warez P2P, and others, allow the creation of a network enabling people to connect with other users and upload or download material in a fast efficient manner. BUT even if the P2P software you are using is "clean", a large percentage of the files served on the P2P network are likely to be infected.
  • Cracked or pirated programs are not only illegal, but also can make your computer a malware target. Have this in mind.
  • Do not open any files without being certain of what they are!
5. Avoid questionable web sites!
Visit web sites that are trustworthy and reputable. Many disreputable sites will attempt to install malware on your system through "drive-by" exploits just by visiting the site in your browser. Lyrics sites, free software sites (especially ones that target young children), cracked software sites, and pornography sites are some of the worst offenders. Also, never give out personal information of any sort online or click "OK" to a pop-up unless it is signed by a reputable company and you know what it is.

6. Registry cleaners/driver boosters/system optimizers
I do not recommend registry cleaners, system optimizers, driver boosters and the like. It is your computer and certainly your choice. However, please consider that modifying registry keys incorrectly can cause Windows instability, or make Windows unbootable. With registry cleaner and system optimization software programs, the potential is ever present to cause more problems than they claim to fix. Do note, however, that Microsoft does not support the use of registry cleaners. See Microsoft support policy for the use of registry cleaning utilities.

7. PC means personal computer!
Don't give access to your computer to friends or family who appear to be clueless about what they are doing.

8. Back-up your work!
Make back-ups of your personal files frequently. You never know when you'll have to reformat and start from scratch. You can always reformat and reinstall programs, but you cannot replace your data if you haven't made backups.

9. Must-Have Software
An anti-virus and an anti-spyware program is a necessity for the security of your computer. Be sure that you keep them updated, and that real time protection is enabled. You have now the built-in Windows antivirus, Windows Defender. Together with Malwarebytes, if you run it occasionally, depending on how often you use your computer, can keep you safe.

Happy safe computing.
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I'm glad I was able to help you.
 
Thank you so much DR M, you were very helpful from the very start and I can't thank you for your time and expertise enough! You and your team are truly amazing 😄❤️
 
Thank you so much DR M, you were very helpful from the very start and I can't thank you for your time and expertise enough! You and your team are truly amazing 😄❤️

It was a pleasure working with you, Mikuro. I'm glad, not only because your initial problem is now resolved, but because you took wise decisions during this cleaning procedure. The most important, you activated your Windows with a genuine license.

Take care, stay safe, you and your computer! 😀
 
If it was not for you, I would'nt take such steps! You are a turning point for me and I was so happy to bump in to you. I am in awe with how you analyze and code the fixes. You truly are amazing and that is no exaggeration! 😄
 
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