Frequent Reboot Needed

[tearinghair]

Having trouble with the desktop. After a while the internet starts running very slowly, and the only solution seems to be to reboot. This also takes an age, and it's quicker to switch off completely and restart. I leave it on all the time usually. malware scan shows no problems. I used to do adaware scans, but was told that this shouldn't be necessary when my new computer was installed. Defragmented recently.

It seems to date back to the time when I installed a new programme (actually a game), but using a trusted site which has been fine before; and certainly the problem gets worse after I've been playing. I'd prefer not to uninstall the game unless it's absolutely necessary. Any advice, please? I'm on Windows 7 and using Google Chrome, though I do have Firefox (and a very old version of IE) installed. I have Norton anti-virus.

[JohnFarrel]

It's really very painful to face system slowness. Find the below link to prevent system slowness for Windows 7.

http://windows.microsoft.com/en-in/windows/optimize-windows-better-performance#optimize-windows-better-performance=windows-7

[tearinghair]

Thank you, I'll give that a try later. It's worse than ever this morning.

[ukbod2015]

There are many problems listed with Chrome so may I suggest you use firefox with adblockplus. Ask your Norton to do the cleanup and registry clean. How full is your hard disk if its much more than 50% it will slow down. Download drivereasy - it free - and run it - it will give a machine report and offer up to date drivers for all your hardware. If you have external drives plugged in only plug them in when you need them. Save all your pics, video, music to a memory stick. Then defrag and checkdisk. if that doesnt work add RAM if you are 4 or less.

[Arksided]

I've had a similar problem at home, under same circumstances, downloaded a game which I believed to be safe, also similar symptoms. Using Xp pro and a later version of windows (I forget which sorry) but has corrupted so although defragged, Avast even Malware before it went bonkers. I Have decided to start from scratch and re-install every thing I have an EHD so not a problem getting files back but still a pain in the arris when I start. Which may be best course of action for yourself... at least then you'll know for sure the 'trojan' will be gone.

[Buenchico]

When you first start up your computer, open the Task Manager (via right-clicking on the taskbar at the foot of your screen). Click on the 'Processes' tab. Click on 'Show processes from all users'. (If you're asked for permission to proceed, grant it). Click on the 'Memory' column heading, to place the list in descending order of memory usage. Maximise the window, so that it fills your whole screen and then minimise it down to the taskbar. (It's important to do that before things start going wrong, as you might experience difficulties getting into the Task Manager when they do).

As soon as your computer starts slowing down, maximise the Task Manager window again. Look down the CPU column for any high figures. (Under most circumstances the only 'double figure' entry should be against 'System Idle Process', which might typically have a figure of around 90 or more next to it. Everything else should normally show '00', '01' or '02'). Note the name of any process with a high CPU figure.

Then look down the 'Mem Usage' column. Anything above about 30,000 (other, possibly, than your web browser) should be regarded with suspicion. Again, note down the name of any suspect process.

(Note: If svchost.exe turns out to be causing a problem, look to see what's making a call upon it. You can usually identify what it is by looking for a figure in the 'Mem usage' column that changes every second or two; the actual figure shown doesn't necessarily have to be that high. Again, note the name of the process).

Once you've identified a suspect process try uninstalling the relevant software, restarting your computer and then (if required) reinstalling the software. If you don't recognise a process name, google it (or ask here) to find out what it is. For example, if Navw32.exe was exhibiting unusual behaviour, you could quickly find out that it's part of Norton, leading you to uninstall Norton and then reinstall it. (NB: If it actually is Norton that's causing you problems, make sure that you uninstall it with the Norton Removal Tool, not from your list of installed programs).

[Arksided]

Norton, seems a bit dodgy to me.