Extremely slow start up and Windows Explorer keeps crashing.

Hello, my name is Thomas, and I'm new here. I'm not all that versed in computer repair but I'm coming to you for help with a serious issue on my laptop. It all started two (2) days ago while I was on Facebook. All was running fine all morning when suddenly my computer started slowing down and needed a ten (10) second break every time I input a new letter into my messages. I bore through it for a good ten (10) minutes before shutting the computer down out of fear that overheating was the cause of the sudden slow down.

After about half an hour I turned my computer back on and all seemed fine until I tried logging into my account. Suddenly it would only log into a black screen with nothing but the mouse visible. The mouse was usable but nothing else would load. I proceeded to shut my computer down and reboot it into Safe Mode. Once in Safe Mode, I ran my anti-virus (avast!) and it came up with nothing wrong with my computer. Odd, so I tried a system restore, this did nothing at all for my log in issues.

I closed my computer and went to meditate to clear my mind and relieve myself of the immense anger building, so as to not strike the computer out of frustration. When I came back and opened my laptop, it loaded up properly. Not a single issue, the laptop ran as it had a month before. I continued with my plans for the day and the computer ran fine for a good hour and a half before finally showing some issues again. When I went to watch the original Tron on Windows Media Player, it froze up.

I couldn't exit the program, I couldn't launch Task Manager, I couldn't even launch Firefox to try finding a solution online. Suddenly I got a notification that Windows Explorer had stopped responding. Joy. Again, I shut down my computer for a short time while I went out to Wal-Mart and bought Norton 360. When I arrived home, I installed Norton, ran the anti-virus and it found nothing. Ran the system check and it gave two (2) issues with my computer. There was a problem with the OS but wouldn't tell me exactly what it was or how to fix it and the drivers for "Plug N' Play ID" where missing.

I went to Microsoft's website and downloaded their "Fix It" program and it appeared to have fixed the issues, or so Norton claims. All ran fine for a good forty (40) minutes until I went to sync my iPod Touch in an attempt to put my new Tron soundtrack on it. The sync locked up at three (3) songs completed and suddenly the it froze. I was then prompted to uninstall and reinstall iTunes as it was missing the proper drivers to communicate with iPods. I did as instructed but the install froze when it came to "Checking to see if a restart is needed." When it unfroze, twenty (20) minutes later, I was told to restart my computer to finish the install. I did but the black screen reappeared except, this time the start button was visible too.

I then waited and after fifteen (15) minutes, my icons appeared, then my wallpaper and finally I could resume my activities. Or so I thought. Once I tried unpinning a certain program from my tool bar Windows Explorer crashed again. The crashes would continue to happen for the next two (2) days, but only when I'm in normal mode. Safe Mode runs fine, in fact, I'm currently posting this through Safe Mode with Networking. I'm in dire need of help and I'm running out of patience as this is the second time my computer has had severe issues, the first being last summer when it refused to access the internet no matter what we did.

Back then we sent it in to a computer repair shop and they upgraded my computer from Vista to Windows 7 Ultimate. This means I don't have access to the OS install disc at all.

No help coming?

As said before, I'm new here, and I didn't know where else to post about my computer continually crashing like this. I tried doing the first thing Jack said, but I couldn't figure it out and disabling things didn't seem to make any difference at all.... unless I was supposed to reboot every time I disabled something. Currently, my laptop seems to be cooperating, but that was only after I disabled one of my two video drivers.

So um, yeah, the disabled driver isn't working to solve the problem anymore. Now its actually getting worse, to the point where it takes 5-6 restarts to get my computer running properly. I created a zip folder with the dump file and hopefully it attached to this post properly. Once I get the whole thing fully loaded (about 30-40 minutes of hard-restarting) and it'll run fine for about 2-3 hours before windows explorer crashes again. I've tried Jack's registry fix, and it did nothing. So did turning off all start up processes not related to Microsoft. I'm honestly getting desperate here and I don't have the money to replace the 2 year old computer and I have no way of backing everything up in case my computer dies completely. I'd like to add, if I didn't already, that the computer works perfectly fine in Safe Mode. Any help at all is welcome, especially any that gets my computer up and logging in properly again.

Um... there are no stickers, I got this laptop second hand from my ex and she removed all stickers aside from the bar codes on the bottom. I also can't contact the people who intalled Win7 as I don't know who they were, they were a friend of my mom's co-worker. Don't really have any blank discs, in fact, I have no spare money at all right now, as every cent I have is about to be used to move across the country. *sigh* If it's really a hardware issue and there is nothing I can do to fix it without paying any money, I guess I'm going to be cut off from everyone soon, or put the move off a few more months to buy a new laptop.

Hello Thomas,
Get your AntiVirus to do some malware scans to check if there is malware in your system. Download Malwarebytes as well and let it scan your computer.

Have you run SFC /SCANNOW?
Can you be more detail by extremely slow start up? Is it slow during booting or when you have logged in?

I have tried SFC/SCANNOW and it errored at 86%. It got there, hung for about 15 minutes and it stopped saying that the action could not be completed as requested. I've run Norton's full computer scan and all it ever found was tracking cookies, nothing it couldn't fix.

It all seems random really. One time I turn it on, it'll get past "Welcome" and load my wallpaper, but nothing else. Or it'll load my task bar and some of my desktop icons, yet not my background. Or it won't load anything beyond the mouse, which is movable. Or it'll load my wallpaper, half my task bar icons and blank icons on my desktop. Or it'll only load the task bar and start button. Note that nothing can be clicked on unless it loads everything.

Repair Install
It is advisable to do a repair install - you mention errors in sfc /scannow? They are pointing to corrupt OS files. Doing a repair install will still have your data and everything. Just moves to a folder named Windows.old