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Windows installer could not accessed

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tarvi4:
Just a heads up, i have tried every command if CMD which is recommended by microsoft.
I am using Windows 7 Professional X64
All the things that start with ms...... etc and /scannow etc to make sure Windows files are correct.
When i try to download java, i get "Windows installer could not accessed, bla blabla error code 1601", this happens if i try to download others things that require windows installer too.
When i try to download something from Microsoft website, I get an error "This computer is not applicable for this update" or smth.
Everything was fine - downloads, games, videos etc the day before the problem occured.
No updates nor anything downloaded before closing the computer.
I tried the regedit thing, to make sure it is working and set on manual etc provided no results.
I have no restore points or images to try.
All options of windows 7 repair disc dont help.
So im done, I have no idea what to do.
Does anyone wiser know, what to do?
Games dont start(minecraft,league of legends etc)
So im basically out of options. Only option i have left, is to throw away my legal windows 7 and install a pirated one.
TL:DR Windows installer cant be accessed, i have tried everything i could find in google, games dont start, no system restores.
HELP

Boggin:
A couple I've come across for that error and they are -

http://www.howtogeek.com/184374/how-to-fix-the-windows-installer-service-could-not-be-accessed-error-in-windows-7/ - you would need to right click on cmd and select Run as administrator.

https://support.microsoft.com/en-us/kb/2642495

and if you have already tried those or they don't work, then you can reinstall the service from this article -

http://www.sevenforums.com/tutorials/236709-services-restore-default-services-windows-7-a.html

tarvi4:
Im sorry, but none of the above worked.

Boggin:
Are you able to start the service in services.msc ?

If not, in services is Remote Procedure - The RPCSS showing as started and automatic ?

Can you go Start then start to type troubleshooting and press enter when you see Troubleshooting highlighted - click on View all in the upper left pane then click on Windows Update to see what that reports.

Have you tried running the Windows Repair program in Safe Mode with Networking yet ?

I assume you've already run a chkdsk /f ?

A chkdsk /f will also report if you have any bad sectors on the HDD.

If you miss its report then go Start - type eventvwr and press enter.

When it has read the data, expand Windows Logs, click on the name Application - Action - Find then type chkdsk or wininit into the Find box and press enter.

Cancel the Find box and read the report in the scrollable pane and you are looking to see if there are any KBs in bad sectors.

Which antivirus program are you using and have you tried to download anything in Safe Mode with Networking ?

If you are able to do things in that mode but not in normal mode then it can be a sign of an infection, which not being able to download anything is also a symptom of an infection.

If you don't have an antimalware scanner like the free version of MBAM then go Start - type mrt.exe and press enter - accept the UAC and run the default Quick Scan to see if that reports anything.

tarvi4:
IMPORTANT! I entered safe mode with networking, the problem persisted. While doing the tweaking full repair, I noticed that 50% of the things that the program did, showed access is denied because the volume is being used by another process etc. I noticed lately that my cpu utilization and ram usage DOUBLES for a good 15 minutes then ends even thought it shows no processes taking all the ram or cpu usage.. I noticed that my system is awfully slow, althought it shouldnt be.



Windows update ran for 30 minutes showing "searching online", but i can update manually. It shows my windows is up to date.
It appears, windows installer runs for 2 minutes then turns off because "Error: 0x80004005 cant connect to server"
Tried running chkdsk today, another problem. It worked yesterday.

Event viewer

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