Win 7 probs, wot do?

[Shaft]

So, suddenly my laptop has gone a bit mental - took forever to boot up, then won't open any applications, or might open a browser, then freezes when I try and do anything else.

Tried a system restore, which made no difference, then did some googling and ended up running sfc/scannow from the CMD prompt - that hung at 79% an took 45 minutes to tell me it couldn't run.

I've now discovered that everything runs fine if I start in safe mode with networking, which is where I am now.

Samsung lappy, about 3 years old, no changes from standard and I haven't downloaded anything in almost 2 years (AVG says no viruses).

Not very tech savvy, but I can follow instructions, if anyone has any ideas.

TYIA
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[sickpup]

Do you have an SD card reader and if so is there an SD adaptor in it?

[doggone]

In task manager what if anything seems to be using resources?

[Pjay]

https://www.bleepingcomputer.com/download/combofix/

Thank me later.
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[Shaft]

[Shaft]

[Hawkeye1250FA]

Had a Similar thing with the wife's laptop recently.

From boot up the laptop was constantly sluggish. Task manager (when it eventually loaded!) showed 100% hard drive usage. Not sure what it was doing but left it turned on and doing whatever's it was doing for a couple of hours and it fixed itself.

My guess is it was installing background updates or some other back end windows stuff?

Is it an SSD hard drive?
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1993 RF400R - 2002 Bandit 1200 - 2012 1250 FA

[Shaft]

[RhynoCZ]

I had exactly the same issue twice in the past few months, also win7.

The first time, after a fresh OS install. The Windows update app failed to update the system, but kept trying regardless, eating up a very reasonable portion of my computing power (70-80% CPU utilisation). Fixed by manually installing updates by the KB codes and all that. A known issue, probably caused by Microsoft themselves to promote win10.

The second time I had this issue, the reason was much simpler. Malware in the system files = antivirus had no clue. I only found out about that as that was the very last thing I tried to fix my computer. How to check for malware? There are a plenty of scan tools around, free of charge and actually working. The issue however is, that the only way how you may get rid of the malware is mostly by removing the infected files. In my case that was the explorer.exe; the programe could not ''just repair it''. So now my PC runs as it should, but every time I boot the OS up, I have to manualy turn the explorer.exe on in the task manager.

EDIT: Microsoft has its own malware scanner tool on their site for free.
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[Lord Percy]

I note you have a Samsung laptop, and I note that one person asked if it has an SSD hard drive.

If it does have an SSD, it could have been a sly update that happened in the background and messed around with your computer's RAM settings.

My Samsung SSD firmware updated recently, after which my laptop was taking years to do everything. I discovered the update had reset a load of stuff and for some reason it told my laptop it was only allowed to use 200MB of RAM out of the 8000MB it had available. No wonder everything was going so slow.

To check and/or fix this issue, follow these steps:

[andym]

I had some issues with my PC a few days ago, CPU at 100% load and could barely move the mouse pointer etc. nothing showed up in the task manager or the startup, the only thing that I'd installed was twitch recently

I done a scan with AVG and that found nothing, done a scan with malwarebytes and that found 6 trojans (3 of which were bitminers), after they were cleared out the computer went back to normal.

[Pjay]

[M.C]

[-]

The hard drive is fecked. Trust me, I'll put money on it.

Have a listen to the area of the laptop where it's fitted, usually the front to one side, look underneath for a panel the size of a pack of playing cards. Put your ear to it when the laptop is grinding to a halt.

Listen for che-chung-che-chung-che-chung...pause...che-chung-che-chung-che-chung.... etc...

From a command prompt try chkdsk c: /f /v /r
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[RhynoCZ]

[andym]

[RhynoCZ]

OP, try this: https://www.microsoft.com/en-us/download/malicious-software-removal-tool-details.aspx
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[M.C]

[doggone]

It's a run once check, for if something odd might be going on.
If you do all the updates one is included periodically and runs automatically.

[Shaft]

[Pjay]

[Jewlio Rides Again LLB]

[Shaft]

[Pjay]

[-]