Windows 10: Terrible performance, and I have no clue why

Recently, my computer started to experience big issues playing YouTube videos. I used to be able to watch 1080p60 quality just fine (provided that nothing was loading the network), but now I'm basically stuck to 480p. The videos "buffer" even when there is already buffered footage, it takes over a minute for a video to start, and sometimes again over a minute to go to/from fullscreen (the video gets stuck in a strange fullscreen transition phase where it keeps playing but can't be paused).

Now the overall performance also dropped a lot, it takes many times longer to open programs, games are laggy...

I have no idea what is causing this and what to do. I am updated, I defragged, ran antivirus scan, ran Malwarebytes scan, cleared all caches and temp files, removed over 200GB of trash/unused files, disabled almost all background processes...

The actual cause seems to be CPU and disk usage unexplainably spiking (hence why I ran multiple virus scans). When I open task manager, it usually just says something extremely vague, such as that "System", "System Interrupts" or some other system app (located in system32) is behind the usage. When I try googling the process name, all the time I just come up with results saying that it's the "system", again, extremely vague and useless information that doesn't help me troubleshoot whatsoever.

Any ideas about what more I could do? If it comes down to me reinstalling the system, I'm probably just gonna go with Linux Mint that's been running on my laptop for years without issues like this.

submitted by /u/derekcz
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:)

 

Performance is terrible after Windows reinstallation

Hi Sean, my name is Max and I'm an independent advisor.

I suggest you follow the steps provided in the article Tips to improve PC performance in Windows 10

https://support.microsoft.com/en-us/help/400201...

Please, ignore the method numbers 5 and 11, because they might result in losing the data and the applications on your PC.

 

Performance is terrible after Windows reinstallation

I reinstalled Windows on my ASUS Zenbooks (UX303LN) but performance is terrible - the system often freezes

 

Edge Search Does Not Permit Change of Region


I got these suggestions from the Microsoft Community forum.No. 1 worked for me:

Thank you for posting the query on Microsoft Community. I am glad to assist you on this.
We have reproduce the issue here and we are able to access non-regional search for google using Microsoft Edge.
I would suggest you to try the below steps and check if it helps.
Step 1:
Clear browsing data option of Microsoft Edge and check if you face the issue. To do so perform the steps below.

1. Click on the More actions icon next to the feedback icon present on top right corner of the Project Spartan homepage.
2. Select Settings and click on Choose what to clear.
3. Check the boxes Browsing history, Cookies and saved website data and Cached data and files and click on Clear.

Step 2:
I suggest you to create a new user account and check if the issue occurs.

1. Go to Settings.
2. Choose Accounts and then select Family and other users.
3. Select add someone else on this PC.
4. Enter a user name and hit next.
5. Click on Finish.
6. Sign out from the current Account and Log into the new account.

Step 3:
It could also happen because of network issue. I suggest you to try with different network connection and check if it helps.