Windows 10 Very Slow

I have a Lenovo x230 laptop that I've been using for years. In the past week or so it has slowed down to an amount that is challenging my patience, no matter what the function from booting to browsing.  It seems to have to do with a recent update to windows, but I can't tell.  Task manager doesn't show excessive CPU use. I have kept up with all the Lenovo system updates and system is current.
Windows 10 pro build 17134, 64 bit
System Model 23252 VU
Core I7-3520M
16 Gig Ram
Samsung SSD 500 gb

What should I be looking for?
Scott BorisonLaw Firm ManagerAsked:
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pgm554Commented:
The newer meltdown patches are supposed to take a performance hit with the OS.
Have you checked to make sure the bios is up to date?

The latest build is the 25th of June.

https://support.lenovo.com/us/en/downloads/ds029187
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JohnBusiness Consultant (Owner)Commented:
Check Lenovo System Update for BIOS.  5 on one machine, 4 on each of two others I have here.

If after doing BIOS as we have suggested, run a Windows 10 Repair Install and Keep Everything.

Go to the Media Creation Link:
https://www.microsoft.com/en-us/software-download/windows10

For Windows 10 V1709 and prior:
Windows 10 is running, so click on the Download button (not Upgrade Button, select Open (Run) but NOT Save. Allow the program to run. Allow drivers to update. Then select Keep Everything.

For Windows 10 V1803:
If the Repair will not run as per above:
Create a USB Windows Installation key and then run Setup on the USB Key.
This will launch the Repair and proceed normally.
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JohnBusiness Consultant (Owner)Commented:
Also I have an X230 here completely up to date with BIOS / Drivers and running an advanced version of Windows 10. It is running quite fast.
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McKnifeCommented:
"Task manager doesn't show excessive CPU use" - what about disk I/O? Open resmon and look at the disk section and see if there are processes that read or write several MB/s.
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pgm554Commented:
I just had 2 W10 black screen these past 2 days ,so M$ might have busted something (again).
Also ,I would download Samsung Magician for the SSD and see if there are any updates to the firmware in that drive.

https://www.samsung.com/semiconductor/minisite/ssd/product/consumer/magician/
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Scott BorisonLaw Firm ManagerAuthor Commented:
I'm now backing up (slowly) prior to making any changes. BIOS is latest. My issue has the appearance of a display issue. For instance for a while after I've booted and opened Outlook if I compose a message displayed text lags far behind what I've typed and fills in at a couple characters per second.  Once the extended booting gyrations are done type displays normally.  Is the display the problem? Can't tell, but I don't think so because opening some programs goes very slowly.
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JohnBusiness Consultant (Owner)Commented:
Open any Office App, Options, Advanced and Select (Check) DIsable Hardware Graphic Acceleration. That may help the Outlook / Office Display issue but I do not think that is the cause of your slowness.
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nobusCommented:
you can also run msconfig :  https://windowsreport.com/msconfig-windows-8/
check disable all services - reboot and check if it runs better
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web_trackerComputer Service TechnicianCommented:
It sounds like your harddrive is developing delayed sectors, this happens shortly before the drive totally fails. Time to replace the hard drive.
You can run a hard drive diagnostics on the drive to see if it is delayed sector issues.
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nobusCommented:
webtracker, what is a delayed sector?  never heard that term
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pgm554Commented:
It's an SSD ,so I don't think that's an issue.
However, running Samsungs utility is suggested.
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Scott BorisonLaw Firm ManagerAuthor Commented:
I ran msconfig and disabled all services. Performance was immediately as it should be, CPU performance looked normal, problem cured -- except I couldn't figure out what to enable to get my wi-fi working + whatever services I actually need.

So I enabled all again. I'm back in the soup but wifi is working.

Any suggestions re what the offending service or services might be? There are some, of course, remaining from some 5 years + of using this computer, installing programs for this and that, that are no longer useful. Those I can kill, but I doubt they would suddenly be presenting a problem.
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pgm554Commented:
You got any 3rd party AV?
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JohnBusiness Consultant (Owner)Commented:
There are some, of course, remaining from some 5 years + of using this computer, installing programs for this and that, that are no longer useful.

In addition to the question above re: 3rd party A/V, uninstall ALL programs you do not need, especially legacy software, and then (after that) do the Repair Install (above) and Keep Everything.
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nobusCommented:
you should not enable all - enable them in groups, or one by one, to narrow down to the problem
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pgm554Commented:
Could be a virus too.
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Scott BorisonLaw Firm ManagerAuthor Commented:
I narrowed down to the offending service and it was Power.  While on a long trip I set the power to maximum battery life, little knowing that doing so would (apparently) apply low power settings to both plugged in and on battery.   Maximum CPU power was set to 5%.  41% of 1.19 G CPU speed. Normal maximum speed is 3.39 G.  A little M$ trick I didn't think of.


The others were good ideas, but not the problem.
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nobusCommented:
tx for the update - good to know - and you've learned something  too...
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