PC out of order after use of AVG PC TuneUp

Hello,
By mistake, I SET IN SLEEP MODE ALL THE PROGRAMS " WHICH SLOW DOWN " the PC.
Consequence, my PC does not start any more, I obtain a blue screen mentioning the code 0xc000021a
What I have to do ?
Thank you for a fast answer.
Jacques

jproc33@free.fr

Hello Jacques,
We are sorry to hear that. Please try to follow the instructions provided below and check if it helps :
Start the computer in Safe Mode using the instructions on the article http://avgclick.me/rebootintosafemode
Start Command Prompt with Administrator Privileges -
Type the command -

a. DISM /image:C:\ /cleanup-image /revertpendingactions
b. cd to Windows\WinSxS folder
c. move pending.xml pending.old

Thank you.