I Opened a Suspicious RTF Attachment—What Should I Do Now?
I was checking my school email in Chrome when I clicked what looked like a job opportunity. It turned out to be an RTF attachment rather than a…
malware scan
PC became extremely slow and unstable after running a Roblox executor
My PC was working normally until I left it running for about three days. During that time, I used an executor to modify Roblox and left it running…
Clicked a suspicious RTF attachment—what should I do now?
I accidentally opened an RTF attachment from a suspicious job-related email while checking my school account in Chrome. A window appeared briefly and then closed. I disconnected the…
How can I check whether my Windows 11 laptop has malware?
For the past 20 minutes, my laptop's fans have been ramping up and down every few seconds even though I'm only browsing the web. Interestingly, the fans became…
Is This Game Trainer Safe to Run?
I downloaded a trainer for an older single-player game from a site that appears reputable, and I'd like a second opinion before running it. The file was scanned…
My laptop mouse moved on its own in public—should I be worried about hacking?
I'm not very tech-savvy and was using my laptop at a library when the mouse suddenly started behaving strangely. After I stopped touching it, the pointer moved by…
How can I check whether my computer is compromised?
I downloaded a file from WhatsApp onto my computer and extracted the archive. The extracted item appeared to be an image, but I never opened it. In File…
How Can I Check Whether My Computer Is Safe After Opening a Downloaded Archive?
I downloaded a ZIP file from WhatsApp on my computer and extracted it. The extracted item appeared to be an image, but I never opened it. In File…
Why Are All My Files Suddenly Duplicating and Filling Up My Hard Drive?
I'm new to managing laptops, and recently almost every file on my computer started producing duplicates. This includes installers, pictures, videos, PDFs, Word documents, and other file types.…
Why does my PC lag and nearly crash as soon as I connect Ethernet?
My PC starts lagging almost immediately after I plug in an Ethernet cable. Wi‑Fi recently stopped working on this computer, although it still works normally on my other…
Why is only my PC suddenly stuttering in games and YouTube?
My PC started lagging and stuttering about two weeks ago. It happens both while playing games and while watching YouTube, where videos may become choppy or buffer unexpectedly.…
Why is my PC using 93% of its memory immediately after startup?
This problem started suddenly yesterday. As soon as Windows finishes starting, memory usage jumps to around 93%, even though only the usual startup programs are running. I normally…
Windows Became Extremely Slow With a Huge Cursor After Removing a Failing Drive—How Can I Fix It?
I connected an older 4 TB hard drive to my Windows PC to see whether I could reuse it. It appeared to be completely unusable—another device reported 0…
Windows looks distorted and runs slowly after removing a failing hard drive—how can I fix it?
I connected an old 4 TB hard drive to my Windows PC to see whether I could reuse it. The drive appeared unusable—my PlayStation reported 0 KB free…
How can I scan for malware when antivirus apps won’t run in Safe Mode?
I'm concerned that my HP Omen Windows laptop may be infected with malware. Network connectivity periodically gets completely consumed for 5–15 seconds, and I'm also seeing problems with…
Could Visiting an Adult Website Infect My Android Phone?
I accidentally opened an adult website on my Android phone using the fully updated Samsung Internet browser. My phone's latest security patch is from March 2025. I became…
Did Windows Update unexpectedly install a BIOS or firmware update?
This morning, a folder icon stayed visible above every window and would not disappear. The night before, I had connected my phone to back up photos, then played…
Could an unexpected BIOS and firmware update mean my computer was compromised?
This morning, a folder icon stayed visible above every window and would not disappear. The night before, I had connected my phone to the computer to copy photos…
What is the mysterious “F” entry in my Windows startup apps?
While checking the applications that launch when Windows starts, I noticed an entry named only "F." It looks suspicious, and the option to open its file location is…
Windows 11 plays an error sound every 40 minutes and switches apps unexpectedly
My Windows 11 PC makes an error notification sound roughly every 40 minutes. Sometimes it also switches me away from the application I'm using, almost like Alt+Tab was…