Monitor is not going into sleep mode


Well-known member
Feb 10, 2008
Gilbert AZ
For some strange reason my computer will not let the monitor go into sleep mode. Any suggestions? Also automatic updates will not install. I've tried several times, but they will not install. The strange thing is the update file size is 0 KB. Anybody else having problems with updates?


Mod Squad
TFP Expert
LifeTime Supporter
Jul 10, 2009
Houston, Texas
What operating system are you running?

My initial thought is a virus has made a few changes to your registry. Download Malwarebytes, install it and run it on the computer and see what it finds.


Well-known member
Mar 17, 2010
Spring, TX
On the sleep mode, make sure in power setting in control panel, you do not have it set to on all the time. I have problems with updates as well sometimes. Try to google the update and sometimes you will have to donwload the update from the microsoft download center and it will be a file and install that way.


TFP Expert
LifeTime Supporter
May 3, 2007
Pleasanton, CA
First, XP does not have sleep mode as Vista does but it does have standby which is nearly the same. Second, XP is notorious for having problems with standby. Just google XP and Standby and you will see many posts on this. My wife has a laptop with XP that will only go into standby about half the time. Several programs seem to keep it awake. After reboot and login, it will go into standby but if she runs any programs, it will then refuse to go into standby. Note too that the monitor will not go into standby unless the computer goes into standby. Try a reboot and login without running any programs and see if it will go into standby. However, no matter what I have tried, it never seems to fix this problem.

Also, the problem with Windows update can sometimes be fixed by deleting the Windows Update Cache here: C:\Windows\SoftwareDistribution\Download. Windows should then redownload the files that it needs.

You can also run a system file scan using "Start" -> "RUN" -> SFC /SCANNOW
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