task manager disabled in windows 7

my task manager and registry editor are disabled in windows 7 ultimate...

computer has also become slow and unresponsive since last day,

i don't know what has happened, i don't have an anti-virus installed on my computer,

Please suggest the best possible steps to correct the errors ASAP...

EDIT: ITS SHOWING CLISTART.EXE error at startup just after boot since last night, press ok to close it displays, i press ok, or i press the "x" button...

no such errors came before...

ITs a virus. do a scan with latest free AV like Avira or Avast or use this online AV-

HouseCall - Free Online Virus Scan - Trend Micro USA

downloading the link you provided...

Or may be Microsoft essential

This problem generally occurs due to malware infection. Run this program:
Task Manager Fix
and it may fix the problem instantly.
If not then scan hard disk with a good antivirus.

utkarsh73 said:
This problem generally occurs due to malware infection. Run this program:
Task Manager Fix
and it may fix the problem instantly.
If not then scan hard disk with a good antivirus.

it didn't work, i tried it already.. :cry:

Shivam24 said:
it didn't work, i tried it already..

Then an AV scan is the solution...

please suggest any free av to scan it immediately right now

thetechfreak said:
ITs a virus. do a scan with latest free AV like Avira or Avast or use this online AV-

HouseCall - Free Online Virus Scan - Trend Micro USA

housecall you suggested is downloading updates, at 80% right now, is this an antivirus or what?

what else should i do?

i have edited my problem, i forgot to mention it earlier, please see the first post , may be you find a solution now....

Shivam24 said:
please suggest any free av to scan it immediately right now

housecall you suggested is downloading updates, at 80% right now, is this an antivirus or what?

what else should i do?

not a full antivirus. and emergency AV when you are infeced. wait for it to be done and it should clean many viruses :wink:

thetechfreak said:
not a full antivirus. and emergency AV when you are infeced. wait for it to be done and it should clean many viruses

its scanning, i hope it works,

19 threats so far...

Remember though-

1) Reboot once scan is done.

2) Even if you still cant access it after cleaning is done try the fix by utkarsh. it should work then :wink:

thetechfreak said:
Remember though-

1) Reboot once scan is done.

2) Even if you still cant access it after cleaning is done try the fix by utkarsh. it should work then

tried everything you told, nothing is working

its not showing clistart.exe error at startup any more but problem remains untouched...

Shivam24 said:
tried everything you told, nothing is working

its not showing clistart.exe error at startup any more but problem remains untouched...

Once again try Re-Enable Portable
I have used it many times and it has worked for me.

utkarsh73 said:
Once again try Re-Enable Portable
I have used it many times and it has worked for me.

i have tried it already and 2-3 other such softwares, but thats not working.... :cry:

Then download Avast free antivirus and scan your system.

ok , going to do that..

Also try Malwarebytes trial edition and perform a scan.

obviously your computer is infected. I prefer clean install.. and then learn how to use win 7 safely.. i.e not running as an Admin.

C

Probaly an autorun virus.
Try smart virus remover or something similar.Always scan usb drives for autoruns
Smart Virus Remover 1.43.1

Even i had this problem previously. None of the antivirus or any other trick helped me. Only Quick Heal helped me. Downloaded the Total Security trial, installed it and did a native scan. That was all. PC restarted and a scan was performed. After the scan PC restarted again and there was no sign of any threat. I could access task manager again. Also double clicking on a floder opened it in an new window instaed of same window. That was solved too.
Try this.

saswat23 said:
Even i had this problem previously. None of the antivirus or any other trick helped me. Only Quick Heal helped me. Downloaded the Total Security trial, installed it and did a native scan. That was all. PC restarted and a scan was performed. After the scan PC restarted again and there was no sign of any threat. I could access task manager again. Also double clicking on a floder opened it in an new window instaed of same window. That was solved too.
Try this.

thanks saswat, will surely try it,

currently away from pc , enjoying my weekend,

will post the status after applying the solutions suggested here on Sunday night when i'll reach home....

thanks...

avast antivirus worked, it was a free version av...

i am planning to buy an antivirus now, please suggest between avast/ quick heal/ norton.

mention if any else is better than these,

thanks

Head here:*www.thinkdigit.com/forum/software-q/138653-antivirus-guide-user-reviews.html
Its better place for this question.

W

if avast worked for you then keep using it & it is free too.also it does not matter what av you use if you don't follow some basic precautions.use latest version of firefox(latest version with noscript addon & adblockplus addon,best in my opinion) or google chrome or opera browser.avoid using shady softwares/cracks or at least read comments before downloading from such sites.always keep your windows updated & never click on any promo/offer/prize/smiley link in web page or email.