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Tutorials

Useful tutorials on various PC troubleshooting topics. Video tutorials.

DRIVER_OVERRAN_STACK_BUFFER BSoD error

How to fix DRIVER_OVERRAN_STACK_BUFFER BSoD error in Windows 11/10

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DRIVER_OVERRAN_STACK_BUFFER is a Blue Screen of Death (BSoD) error that indicates a driver has overstepped its allocated memory space, essentially overwriting parts of the memory it shouldn’t touch. This kind of behavior is typically a result of faulty or outdated drivers, coding errors in third-party applications, or even hardware malfunctions. When this happens, Windows immediately shuts down to prevent system corruption, resulting in the infamous blue screen. This error can arise during startup, while gaming, or when running specific programs like Visual Studio. Users have reported seeing file-specific references like ntoskrnl.exe or nvlddmkm.sys, which can help pinpoint the problematic component. Sometimes, overclocking software or recently installed updates can trigger the issue. Malicious software or corrupted system files may also be underlying causes. Although intimidating, this error is fixable through a sequence of troubleshooting steps. By identifying and addressing the root cause, users can stabilize their systems. Whether it’s updating drivers or checking RAM integrity, multiple resolutions are at hand. Let’s explore all the viable solutions to fix the DRIVER_OVERRAN_STACK_BUFFER error on Windows 11 or 10.
UNEXPECTED_STORE_EXCEPTION BSoD error

How to fix UNEXPECTED_STORE_EXCEPTION BSoD error in Windows 11/10

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One of the more frustrating Blue Screen of Death (BSoD) errors Windows users can encounter is the UNEXPECTED_STORE_EXCEPTION. This error typically causes an abrupt system crash followed by a forced restart, making it particularly disruptive to productivity or gaming. Despite the name, it has little to do with the Microsoft Store and instead points to issues with system files, drivers, or hardware components. Most commonly, this error is linked to faulty system drivers, incompatible software, or failing hardware like SSDs or RAM. Antivirus software, especially third-party ones like McAfee and Avira, have also been known to trigger this error. In many cases, the error stems from outdated drivers or missing system updates. Corruption in Windows system files or issues with BIOS settings can also be contributing factors. Users have also reported this issue when using Fast Startup or Sleep mode features. It can appear on a variety of hardware platforms including Dell, Lenovo, HP, and ASUS. Sometimes, the error may even display messages like "No bootable device" or "Critical process died", further complicating troubleshooting. Fortunately, there are multiple solutions available that can help resolve the issue permanently.

How to remove Cyb3r Drag0nz Ransomware and decrypt .Cyb3rDrag0nz files

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Cyb3r Drag0nz Ransomware is a malicious software designed to encrypt the files on a victim's computer and demand a ransom for their decryption. As part of its signature, it appends a distinct extension, .Cyb3rDrag0nz, to the filenames of the encrypted files. For example, a file named document.pdf becomes document.pdf.Cyb3rDrag0nz once it is encrypted. This ransomware employs strong cryptographic algorithms that are either symmetric or asymmetric, making it extremely difficult to decrypt the files without cooperation from the cybercriminals who distributed it. A unique feature of Cyb3r Drag0nz is its capacity to display a ransom note on the victim's desktop, titled Cyb3rDrag0nz_ReadMe.txt, warning the victim not to attempt manual file decryption and demanding a ransom payment of $1000 in Bitcoin or Tether USDT TR20 for file recovery. Despite its menacing facade, paying the ransom does not guarantee file restoration, as victims often do not receive the decryption key even after meeting the demands.

How to remove SKUNK Ransomware and decrypt .SKUNK files

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SKUNK Ransomware is a type of malicious software developed to encrypt a victim's files and disrupt their access, adding a layer of complexity to digital security issues. When it infects a system, it appends a distinctive file extension, .SKUNK, to the names of all encrypted files, thereby marking them as compromised and inaccessible. For instance, a document named report.docx would appear as report.docx.SKUNK after encryption. The ransomware employs robust encryption algorithms, often utilizing either symmetric or asymmetric cryptography to secure the data, thus making the decryption process without the proper key a formidable challenge. Infected systems display a ransom note to the user, commonly found in a text file named READ_THIS.TXT and within desktop wallpaper and pop-up notifications. These notes detail the attacker’s demands and claim the malware attack as a protest against the prosecution laws related to malware development, rather than explicitly demanding a monetary ransom. Despite this, the threat remains as files cannot be accessed without complying with the given conditions.

How to remove ZasifrovanoXTT2 Ransomware and decrypt .zasifrovanoXTT2 files

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ZasifrovanoXTT2 Ransomware is a member of the Xorist ransomware family, known for encrypting personal data on victims' computers and demanding a ransom for decryption. Once it infiltrates a system, it appends a distinctive .zasifrovanoXTT2 extension to each encrypted file, effectively rendering them inaccessible unless decrypted. The ransomware employs sophisticated cryptographic algorithms, ensuring that files remain locked without the attackers' decryption key. After completing the encryption process, it delivers its ransom demand through a prompt message and an identical text document titled HOW TO DECRYPT FILES.txt, typically placed in every affected directory, and sometimes, even altering the desktop wallpaper to reinforce the victim's awareness of the breach. This note demands a payment of 0.039 BTC within a set timeframe typically with instructions and threats to permanently lock the files should the demands not be met.

How to remove FMLN Ransomware and decrypt .crypt-[original_extension] files

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FMLN Ransomware is a malicious program designed to encrypt data on a victim's computer and demand a ransom for its decryption. Upon infecting a system, FMLN renames affected files by appending a distinctive extension in the format .crypt-[original_extension]. For example, a file named photo.jpg would be renamed to photo.crypt-jpg, leaving users unable to access their data. This extension serves as a clear indicator of the infection. FMLN employs robust cryptographic algorithms to lock files, making decryption without the attacker's cooperation extremely challenging and, in many cases, impossible. The ransomware typically modifies the desktop wallpaper to alert the user to the infection, adding a sense of urgency. Simultaneously, FMLN generates ransom notes in a pop-up window and a text file titled README.txt, providing instructions in Spanish on how to proceed for file recovery. Victims are cautioned against removing the malware or using antivirus tools, as this might permanently lock the files.

How to remove Craxsrat Ransomware and decrypt .craxsrat files

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Craxsrat Ransomware is a malicious software program classified under ransomware, which is notorious for encrypting victims' files and demanding a ransom payment for their decryption. Upon infection, Craxsrat appends a .craxsrat extension to each encrypted file name, altering the structure and rendering them inaccessible. For instance, a file named photo.jpg becomes photo.jpg.craxsrat. This ransomware deploys the RSA cryptographic algorithm, known for its robust encryption capabilities, using separate keys for encryption and decryption, which makes data recovery without the decryption key nearly impossible. After encrypting files, the ransomware creates a ransom note titled HELP_DECRYPT_YOUR_FILES.txt, typically located in every affected folder. The note instructs the victim to pay an amount of $50 in Bitcoin in exchange for a decryption key and allows for the decryption of a single file as proof, although fulfilling ransom demands often does not guarantee data recovery or the development of trustworthy tools.

How to remove Nanocrypt Ransomware and decrypt .ncrypt files

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Nanocrypt Ransomware is a new strain of ransomware that our team detected during security analyses. Much like other ransomware types, it primarily targets and encrypts files on the infected device, rendering them inaccessible to the user. After encryption, it appends the .ncrypt extension to the file names, for instance, turning document.docx into document.docx.ncrypt. The malware employs a combination of RSA and AES encryption, ensuring that without the corresponding decryption key, regaining access to the files is practically impossible. Typically, once the encryption process is complete, it generates a ransom note in a text file named README.txt. The contents of this note inform victims about the encryption, instruct them on how to purchase 50 USD worth of Bitcoin to receive the decryption tool, and caution against trying to recover the files independently or restarting the computer. This kind of manipulation is common in ransomware attacks, aimed at creating urgency and fear to coerce payment.