I can not figure out what happened to my computer windows 7

good morning
I can't figure out what happened to my computer windows 7 Ultimate Service Pack 1.
What I know is what I did
1.downloader and ran the CCleaner
2. '' '' the CursorFX
evening the computer normally closed
All normal to a breakfast ' on open ...sometime I see '' correct desktop.
Opens and that existed before in almost no desktop.
All folders and documents have been transferred.
Programs shortcuts and others have been deleted.
I can not delete a program or to install
Most programs that I no longer work and that energy go to do it asks me to enter like administrator. I tried to do a restore and it puts me.
Please if someone can help me apologizing for my English. Attach photos thanks
why a,pgn does not seem like b.pgn

please no one ?

I would try a system restore to a point before you ran CCleaner.

Did you allow ccleaner to clean up the registry and if so did you make a backup of the registry?

Thanks for the response. The program (malware) I hadn't installed it and I can not install nor in Safe Mode.
As for CCleaner I haven't kept my backup of the registry.
I noticed that in the updates is a problem.
In reseting, you say I can not do.
Do not allow to go inside
In reseting, you say I can not do?
Do not allow to go inside
How can I get the administrator privileges?
Thanks

If you cannot run Malwarebytes in Safe Mode, then move on to the next step to run the bootable AntiVirus scan.

Follow the steps in Troubleshooting Windows 7 Failure to Start.

If you need help completing a step, ask back a specific question using a full sentence.

Try using http://www.bleepingcomputer.com/download/unhide/ to see if you can restore your files.

A root kit which hides the files may need to be cleaned up first before running unHide. Unhide.exe - A introduction as to what this program does

Waiting to hear the results of Windows Defender offline scans.

If you have problems running these scans we need to know what they are, described in complete sentences.