Windows defender error 0x800700AA, service can not be started comes when the user is trying to run Windows defender scan on their system.
This kind of behavior happens for two reasons mostly, third-party application conflict or corrupted system files.
In this article, we will tackle both scenarios and provide you with solutions in both cases.
In this rare scenario when Windows defender can not start scan due to conflict with installed service or application in the system solution is quite simple. Restart your PC into safe mode and run the scan from there. In a safe mode environment, minimum drivers and services are only loaded eliminating any conflicts that might occur when everything is booted. If Windows defender can not run the scan in safe mode and you get the same 0x800700AA error then you can eliminate application conflict as a reason and move to the next solution which will tackle corrupted system files. If you, however, managed to run a scan then you have a rare third-party application conflict, you can boot normally into windows and try to eliminate one by one to see which one is causing the issue. The safest bet would be to start with security software because most of the time that is what causes conflicts in running services and applications.
If the previous solution has not provided you with results then you have system file corruption that needs to be fixed. Move from one solution to another as presented below:
SFC scan is a built-in Windows tool for solving corrupted system files issues, it is fully automated and does not require from the user any kind of knowledge or information. To run it and scan the system do the following:
Press ⊞ WINDOWS + X to open the secret menu
Left-click on the command prompt (admin)
In command prompt type SFC /SCANNOW and press ENTER
Wait for the process to finish, do not interrupt it and once it is done, restart your computer
DISM scan is similar to SFC scan but it tackles different types of system file corruption and it is recommended to run it also after SFC has been completed. Please note that for DISM scan to be successful you will need a stable internet connection since DISM will replace corrupted files with new ones downloaded from Microsoft. To run it do the following:
Press ⊞ WINDOWS + X to open the secret menu
Left-click on the command prompt (admin)
inside command prompt type: exe /online /cleanup-image /scanhealth followed by ENTER, then type: Dism.exe /online /cleanup-image /restorehealth also followed with ENTER.
Leave scan to finish and reboot your PC

Lately, Microsoft has trying to fix Print Nightmare with various methods and patches. The last patch has seemingly fixed Print Nightmare but it has broken the Alt-tab key combination.
It has been reported that the latest patch has broken famous key combinations for quickly switching from window to window. It seems that combination is not working or it is switching to desktop, even going to blank screen if switching from the full-screen game.
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDevicePolicies
CHKDSK [volume [[path] filename]] [/F] [/V] [/R] [/X] [/C] [: size]]Note: In the command given above, “[/F]” will try to fix the system errors while “[/R]” will be the one to fix the bad sectors.
Now before you go on the bandwagon on bashing Intel itself take note that it is not Intel’s fault at all. The issue that arises is mostly due to DRM software and how it works. As you might know or not, Alder Lake has two sets of cores, standard performance cores, and power cores, and with Intel’s Thread Director on-chip right cores will be used for the right tasks, and here lies the issue.
DRM software might detect Thread Director as something suspicious and malicious, and then cut access to the game because of this. Intel, of course, has reached DRM manufacturers and places documentation about how software should be developed with this hybrid technology in mind.
Of course, newer games will be updated if needed and everything will work fine, also games on GOG will work fine because of GOG’s policy of no DRM store but some older ones might be left in limbo. They could work fine but DRM might be triggered and prevent them from loading, usually, game developer itself removes DRM protection after some time but that is not really always the case and there is a chance that some games might simply just not work on Alder Lake CPU only because of DRM protection.
Error code 0xd0000272 is an activation error code that occurs when Windows users are unable to activate their Windows operating system. This error code features common symptoms which include the following:
Error CausesWhen error code 0xd0000272 occurs in Windows 10, it is usually due to issues related to the Windows activation servers. In such a case where the error code occurs due to an activation server that is temporarily unavailable, users may need to wait for a few hours until the activation server is available. Their copy of Windows will then be automatically activated. Once the activation process is not done accordingly, you might encounter other Windows 10 errors such as error code 0xc004f034.
As is the case with many activation error codes, Windows 10 users can perform several manual repair methods to determine the cause as well as fix the error code affecting their device. Instead of passively waiting to see if your activation error code will be fixed on its own, resolve error code 0xd0000272 through the manual repair methods available. Below are simple instructions that when followed can lead to your success.
Check Settings to verify if your machine is connected to the Internet. This is one of the causes of various error codes which affect Windows 10. Also, this manual method is a simple process that can help Windows users recognize or eliminate factors that may or may not be affecting their system. To check your Internet connection, follow the simple instructions below.
Once you’ve been able to verify an Internet connection or troubleshoot any issues related to your network, go to Update & security. Make an attempt to activate your system. If you are successful, you will be able to access all the features and benefits offered via your copy of Windows. However, move to the next manual method below if error code 0xd0000272 reoccurs.
Your inability to activate Windows 10 may be related to an issue with Windows Update. To verify whether or not Windows Update is functioning properly, run Windows Update Troubleshooter.
You’ll need to visit the Microsoft website to access their Windows Update Troubleshoot tool. Once you’ve downloaded the troubleshooter, run the tool. After running the tool, check if you are able to access Windows Update services as well as activate Windows 10. If the problem with error code 0xd0000272 persists, however, follow the instructions provided for manual repair method three detailed below.
Another option available to individuals experiencing error code 0xd0000272 in Windows 10 is to manually disable their machine’s proxy settings. After disabling the proxy settings, remember to open the Windows Update tab to complete the activation process. See the instructions provided below to disable proxy settings.
Once you have successfully disabled your proxy settings, open Windows Update. Select the activation option to access your copy of Windows 10. If you are unable to complete the activation process, however, contact a Windows repair technician.
Once it opens, click on Device Manager to open it,
If you have a driver device error inside Windows, you should see it immediately when entering the Device Manager, it will have a yellow exclamation mark beside it. Right-click on it and choose update driver.Error Code 52 is a device driver problem that users experience on any Windows 2000 operating system and later Windows systems.
The error occurs when the operating system prevents the peripheral device connected to the computer from functioning properly and is usually displayed by the following message:
“Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)”
Error CausesError Code 52 is triggered by the following factors:
Error Code 52 can pose severe risks to the overall health of your PC and any negligence in fixing it can be disastrous for your computer.
However, since the error code is like other device driver errors, resolving the error is relatively straightforward. Here are a few methods to resolve the error code.
You can use system restore to roll back the system to a time when there was no error to eliminate the problem. Here is how you can use it:
By restoring the system via a last saved system checkpoint, you can obtain undamaged Windows system registry files that can help avert the error code.
If restarting your PC does not help, you will have to find the exact nature of the problem by running the troubleshooting wizard for the device and address the problem accordingly. To do this, proceed with the following steps:
After following the directions of the Troubleshooting wizard, make sure to restart your PC for the changes to take effect. Then check if your device is still causing problems.
Uninstalling and then reinstalling the device driver can help solve the error.
You can do this by firstly logging in as Administrator and open Device Manager. Select the device that is causing the problem and double click it and make sure that the peripheral is connected properly to the PC.
Upon opening, click on the ‘Driver’ tab and then select ‘Update Driver’. Make sure to refer to the system documentation that you received with your PC or computer to check for the motherboard details and driver specifics.
Manually uninstalling and reinstalling the driver will do the trick, however, it may be time-consuming especially when you would have to resort to your hardware user manual.
Therefore, using a program such as DriverFIX can save you a lot of time and frustration in having your device work properly on your computer.
DriverFIX, with its user-friendly approach to help you fix your PC issues, comes with an integrated database that detects which drivers you need to reconfigure within just a few seconds and downloads it automatically.
It further ensures that your drivers are installed in their entirety leaving no room for any incomplete files to remain that create Error Code 52.
It also has the added advantage of being able to backup and restores your files should there be the slightest possibility of system file damage. DriverFIX is the answer to fixing your PC error codes accurately and quickly.
Click here to download DriverFIX to fix Error Code 52 quickly and effectively!
Hive ransomware has been targeting Microsoft exchange servers lately vulnerable to ProxyShell security issues in order to deploy various backdoors. Once the backdoor has been placed various attacks can be performed including but not limited to network reconnaissance, stealing admin accounts, taking valuable data, and even installing and deploying file-encrypting algorithms.

ProxyShell is a set of three vulnerabilities in the Microsoft Exchange Server that allows remote code execution without authentication on vulnerable deployments. The flaw has been used in past by various ransomware like Conti, BlackByte, Babuk, Cuba, and LockFile.
Security vulnerabilities have been reported to be fully patched on May 2021 but how Hive was able to still be successful in exploiting PowerShell and infiltrating into the system there seems to be still some unpatched and open issues.
Hive has gone a long way since it was first observed in the wild back in June 2021, having a successful start that prompted the FBI to release a dedicated report on its tactics and indicators of compromise.
In October 2021, the Hive gang added Linux and FreeBSD variants, and in December it became one of the most active ransomware operations in attack frequency.
Last month, researchers at Sentinel Labs reported on a new payload-hiding obfuscation method employed by Hive, which indicates active development.