Uninstall or remove apps and programs in Windows - Microsoft Support
There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.
List of security program cleanup and uninstall tools
Provides links to the uninstall tools and directions for many security programs.
Fix problems that block programs from being installed or removed
First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.
Use the System File Checker tool to repair missing or corrupted system ...
When critical Windows system files are missing or corrupted, your operating system may begin to malfunction. Common symptoms include Windows features not working properly, system errors, or Windows becoming unresponsive or freezing.
How to troubleshoot Windows Installer errors - Microsoft Support
The installation file is typically named Autorun.exe or Setup.exe, but this may vary. If you're not sure, check the Readme file in the folder for instructions about how to run the installation.
Virus and Threat Protection in the Windows Security App
Real-time protection is a feature in the Windows Security app that continuously monitors your device for potential threats such as viruses, malware, and spyware. This feature ensures that your device is actively protected by scanning files and programs as they are accessed or executed.
Protect yourself from tech support scams - Microsoft Support
Tech support scams are an industry-wide issue where scammers use scare tactics to trick you into unnecessary technical support services to supposedly fix device or software problems that don't exist. At best, the scammers are trying to get you to pay them to "fix" a nonexistent problem with your device or software.
Runtime Broker is using too much memory - Microsoft Support
To stop the Runtime Broker from using too much memory: Select Runtime Broker from the list. Select End task to close Runtime Broker, and then restart your device. Get info about how to fix issues with Runtime Broker using too much of your device's memory.
KB5021131: How to manage the Kerberos protocol changes related to CVE ...
After installing updates released on or after November 8, 2022 on domain controllers, I am experiencing a memory leak with the Local Security Authority Subsystem Service (LSASS.exe).
Microsoft security help and learning
Learn how to spot phishing emails. Hackers will try to send you fake order invoices or receipts, hoping you'll take the bait and give them personal information. Learn how to spot fake order scams. What is typosquatting? Attackers will use commonly misspelled or mistyped words to appear as legitimate sites. Learn Learn about URL hijacking.