Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: High explorer.exe cpu usage when typing.

28 Apr 2011   #1
Tofiy

Windows 7 64 Bit
 
 
High explorer.exe cpu usage when typing.

I've been getting this weird problem with my cpu usage. It jumps to around 30% and lags my computer when I type. I checked the task manager and it seems that explorer.exe is the culprit, I re-formatted my computer 2 times and I still have the same issue.
I tried installing Windows Vista and the problem seems to go away though, it only seems to happen with Windows 7. I pretty much tried everything I can think of and I'm at a loss on what to do next. Any help would be greatly appreciated.


My System SpecsSystem Spec
.

28 Apr 2011   #2
Tofiy

Windows 7 64 Bit
 
 

bump. Could use some serious help with this. Thanks in advance.
My System SpecsSystem Spec
28 Apr 2011   #3
Capt.Jack Sparrow

Windows 7 Ultimate - 64-bit | Windows 8 Pro - 64-bit
 
 

Hi there,

What security software are you using? Try to perform a Clean Boot How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
My System SpecsSystem Spec
.


28 Apr 2011   #4
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

It could also be a driver problem. Make a quick check with Process Explorer and see whether you have a lot of Deferred Procedure Calls (DPC). In PE you see it as 2nd or 3d entry. If you are under 1%, you are OK. 2 to 4% and higher would be a problem.

Then you can also run the Latency Checker. If that shows red bars, something is wrong. It might even tell you which driver is the culprit.
My System SpecsSystem Spec
28 Apr 2011   #5
Tofiy

Windows 7 64 Bit
 
 

Quote   Quote: Originally Posted by Capt.Jack Sparrow View Post
Hi there,

What security software are you using? Try to perform a Clean Boot How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
Before this whole ordeal I had Avast installed. I tried uninstalling it and even did a re-format but I still had the same issue.

I also tried the clean boot but it didn't seem to work.
My System SpecsSystem Spec
28 Apr 2011   #6
Tofiy

Windows 7 64 Bit
 
 

Quote   Quote: Originally Posted by whs View Post
It could also be a driver problem. Make a quick check with Process Explorer and see whether you have a lot of Deferred Procedure Calls (DPC). In PE you see it as 2nd or 3d entry. If you are under 1%, you are OK. 2 to 4% and higher would be a problem.

Then you can also run the Latency Checker. If that shows red bars, something is wrong. It might even tell you which driver is the culprit.
My DPC seems to be ok. The highest it would go up to is 0.30%. Is that good?
My System SpecsSystem Spec
28 Apr 2011   #7
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

0,3% is OK.
My System SpecsSystem Spec
28 Apr 2011   #8
Tofiy

Windows 7 64 Bit
 
 

Quote   Quote: Originally Posted by whs View Post
0,3% is OK.
I just let the DPC latency checker run for an hour or so and I didn't get a single red bar. I'm pretty sure this isn't a driver-related issue.
My System SpecsSystem Spec
28 Apr 2011   #9
Capt.Jack Sparrow

Windows 7 Ultimate - 64-bit | Windows 8 Pro - 64-bit
 
 

Hi there,

Did you format the entire Hard drive and reinstall it or just the C partition?
My System SpecsSystem Spec
28 Apr 2011   #10
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Well, it was just one of many possibilities. At least we can exclude a driver problem.
My System SpecsSystem Spec
Reply

 High explorer.exe cpu usage when typing.




Thread Tools





Similar help and support threads
Thread Forum
explorer.exe high CPU usage - tried everything I can think of
Hi, My explorer.exe is constantly using 30-45% of my 4-core CPU. I have determined after MUCH testing that the cause is likely not a virus / malware / rootkit. I have also: tested booting into safe mode (explorer.exe is fine in safe mode) done a "clean boot" by using msconfig to disable all...
Performance & Maintenance
High explorer.exe memory usage?
These past few days explorer.exe has been reaching 29k+ of memory usage and I don't think it used to take that much memory. Any solutions to make it take smaller memory again?
Performance & Maintenance
Explorer.exe high memory usage
I have a fairly powerful quad core PC with Win 7 but even at idle Explorer.exe runs at around 30-50000, total memory usage over 50% (total 2gb) before i even start opening any apps. My Win 7 PC at work for examle which is nowhere near as powerful runs at less than this with several Office apps...
Performance & Maintenance
explorer.exe high memory usage
Hi, When turning on my laptop with Windows 7 (x64), the process explorer.exe memory usage increases significantly to reach 2GB. Using Process Explorer, I identified the thread msvcrt.ddl which may cause the problem, see the attachment. I did a safe mode reboot, it works fine. I did a clean...
Performance & Maintenance
random high cpu usage with explorer.exe
as the subject states, explorer.exe randomly start eating up 50% of my CPU and l believe firefox is the culprit as closing it down usually resolves the issue. when it happens my system usually crawls for a few seconds then when l check the task manager explorer.exe is usually the service eating up...
Performance & Maintenance
Explorer.exe seems to be running high on usage
I hope this is the correct area to post this. My explorer.exe I noticed has been running at a higher usage rate than normal that last few days. I had recently installed Daemon tools lite, and it was suggested that it could be the problem, so I uninstalled that and ran the SPTDinst.exe and...
Performance & Maintenance

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 10:30.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App