Why is my PC running horrendously slow after month of being turned off?

motherboard power-supply

6,450

If I had to guess I'd say it's doing updates (windows, av etc) or may be scheduled scans or any other scheduled jobs.

6,450

Mokubai

I am a community elected moderator on Super User. First, please put down the chocolate-covered banana and step away from the European currency systems. You may consider how to ask a question. You might also want to use the right tools for the job, rather than pounding a nail with an old shoe or glass bottle. But above everything else, please, never use regex to parse HTML. Crawling abominations from the depths await those who venture down that path... Lastly, remember the golden rule of question migrations.

Updated on September 18, 2022

Comments

Mokubai over 1 year

I hadn't turned on my tower until today, it has been off for about the last month. However, the power supply wasn't switched off (so I think there was power to the motherboard). I've got a relatively high end (well, not low end) computer, and it's struggling to do any simple task.

Is there any obvious thing that could have happened? How would I go about diagnosing what has happened, and what needs to be fixed?
- Kknd over 12 years
  
  which operating system do you run for this computer?
Petra over 12 years

@RedGrittyBrick If you need to stop windows update to actually do something useful try doing net stop wuauserv to stop the windows update service temprorarily