Tutorials

Useful tutorials on various PC troubleshooting topics. Video tutorials.

How to remove SD (Unlock11) Ransomware and decrypt .[unlock11@protonmail.com].enc files

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If you are no longer able to access your files, then this is because ransomware infected your system. SD (Unlock11) Ransomware is not an exception since it ciphers users' data with RSA + Salsa20 algorithm and adds brand new .[unlock11@protonmail.com].enc extension to each file. As an example, standard 1.mp4 will be renamed to 1.mp4.[unlock11@protonmail.com].enc after the encryption process is done. It is necessary to point out that .enc extension is more generic and has been exploited by several types of ransomware including MOTD, TrueCrypter, and Cryptohasyou. After successful encryption, the program automatically opens a ransom note ReadMeToDecrypte.txt, which contains the details on how to decrypt your data. Some versions of SD replace desktop wallpaper for displaying the ransom information. In both cases, to unlock the affected files, users should reach out to cybercriminals via unlock11@protonmail.com. You are also allowed to attach 3 files (less than 5MB) so that swindlers could prove they can be trusted. After sending a message, you will be presumably required to pay a specific sum to unlock your data. Furthermore, they will give you recommendations on how to protect yourself from further attacks. Unfortunately, there is no other option at this moment to decrypt files configured by SD Ransomware without paying the ransom and getting the private keys.

How to fix VIDEO_TDR_FAILURE error in Windows 10

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BSOD (Blue Screen of Death) errors might be the chief problem that has been targetting most Windows users. This time around, we are facing VIDEO_TDR_FAILURE error that pops up due to the system crash. The problem is displayed on a Blue Screen saying that your PC encountered a problem and soon to be rebooted for automatic repair. "VIDEO_TDR_FAILURE" is typically caused by display driver malfunction. However, sometimes it can be related to other problems like file corruption, disk failures, and malware infiltrations. Unfortunately, it is impossible to eradicate all errors, so you have to keep an ear to the ground for further engagements. In this article, we will provide necessary information on how to get rid of this glitch and get back to normal usage.

How to remove Dharma-Harma Ransomware and decrypt .harma files

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Being part of the Dharma family, Dharma-Harma is a ransomware program based on AES-256 + RSA algorithms that are meant to encrypt user's data. After the virus gets settled on the system, it blocks multiple files by putting unbreakable ciphers. Once encrypted, files undergo a couple of significant changes. Firstly, the affected files are altered according to such pattern: original_filename.{random-8-digit-alphanumerical-sequence}.[e-mail-address].harma. Note that cybercriminal's e-mail may vary from person to person. Once the encryption is finished, Dharma-Harma generates a text file or image that contains ransom information. It says that your computer is unprotected and needs to be fixed. To restore the lost files, you have to contact them through the attached e-mail. After that, they will supposedly give further instructions and demand a payment in BTC. Unfortunately, those victims who decided to pay a ransom, often get fooled and do not get any decryption keys.

How to remove Ouroboros Ransomware and decrypt .odveta, .teslarvng, .rails or .kraken files

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Ouroboros Ransomware (a.k.a. Zeropadypt Ransomware) is an extremely dangerous virus, that forcibly encrypts and blocks off the access to personal data. By doing so, Ransomware developers prompt users to pay a ransom (around 1000$) for getting a unique decrypting key. When infiltrating the device, it immediately starts rushing through files like images, videos, music, text documents and other valuable data that can be stored on your computer and encrypts it by using the AES-256 encryption algorithm. After that, ransomware assigns a unique .odveta extension to each file, therefore, making it impossible to open. For example, if sample.mp4 gets encrypted it will change the file name to sample.mp4.odveta. There are many other versions and variation of Ouroboros Ransomware, that change file extensions to .bitdefender, .harma, .rx99, .Lazarus, .Lazarus+, .James, .lol, .hiddenhelp, .angus, .limbo, or .KRONOS. Some of the recent extensions like .bitdefender, were created as mockery, because BitDefender released decryption tool, that, unfortunately, cannot decode latest Ouroboros Ransomware species.

How to fix DRIVER_PNP_WATCHDOG error in Windows 10

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DRIVER_PNP_WATCHDOG is one of the BSoD (Blue Screen of Death) errors that pop-ups whilst installing an update. This means that during the process, the system froze and eventually went down facing the Blue Screen. Blue Screen, therefore, says that Windows is gathering additional information about the problem in order to automatically solve it. It also displays the error code at the bottom that can be used for manual search for a solution. However, Windows does not always resolve such issues, even if it does, the error will persist and appear from time to time. DRIVER_PNP_WATCHDOG may be related to multiple reasons such as driver, updates, disk and configuration issues, Thus, you will have to spend some time on testing each solution that is listed below to rectify the annoying error.

How to fix DRIVER_POWER_STATE_FAILURE error in Windows 10

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BSOD (Blue Screen of Death) errors are quite common around Windows users. Followed by a system crash, the computer fails to initiate some necessary processes that maintain the hardware state. "DRIVER_POWER_STATE_FAILURE" code is not an exception and appears whilst waking up your PC after sleep or hibernate mode. The error results in a BSOD crash saying that your pc has problems with drivers. Drivers themselves are very important since they establish communication between software and hardware to operate properly. This particular issue is related to either malfunctioned drivers or wrong battery configuration that cannot communicate with your hardware correctly. "DRIVER_POWER_STATE_FAILURE" error has been in the spotlight of many users and if you are one of those, follow the fixing guide that is mentioned down below.