Usrclass.dat locked file not tested

Author Topic: "Memory space keeps decreasing" Read times. Around 2 weeks ago, i noticed that the free space in my comp would continuously keep decreasing.

In some cases it would "lose" around 20 MB every 1 hour. It was so bad that on one day it fell to zero MB free space. Now i've run as many anti-virus scans as possible and have been attempting to fix this issue, but to no result.

None of the earlier scans detected any virus on the system except for MBAM which indicated a hijack. Now i'd like to know if this problem has been encountered by anyone here before and if so, is this a malware problem? If not, how do i rectify it? Thanks in advance. What Operating System?

Do you currently have more than one antivirus program installed? What is the total hard drive space and free space? After answering those, try this: Download and Install CCleaner.

When you are done, Run the Cleaner. Look for Add and Remove Programs. Thanks for the reply, Carbon. The laptop has a single drive of Search titles only. Search Advanced search…. New posts. Search forums. Log in. Sign up. Computer problem? Tech Support Guy is completely free -- paid for by advertisers and donations. Click here to join today! JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.

All programs suddenly become unresponsive. Thread starter CaptainSiberia Start date Apr 2, Status This thread has been Locked and is not open to further replies. The original thread starter may use the Report button to request it be reopened but anyone else with a similar issue should start a New Thread. Watch our Welcome Guide to learn how to use this site.

CaptainSiberia Thread Starter. Joined Nov 29, Messages Everything will be going along fine. Welcome to TechSpot! Please describe the redirect? All browsers? All search engines? We don't 'screen' for malware with HijackThis. When you have finished, leave the logs for review in your next reply. NOTE: Logs must be pasted in the replies.

Attached logs will not be reviewed. Please do not use any other cleaning programs or scans while I'm helping you, unless I direct you to. Do not use a Registry cleaner or make any changes in the Registry. The AVG scan is clean. Malwarebytes is clean. Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems.

If something happens to a shared DAT file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when UsrClass. Some of the most common UsrClass. Your UsrClass. Furthermore, UsrClass. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly. If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your UsrClass.

These troubleshooting steps are listed in the recommended order of execution. When the first two steps haven't solved your issue, it might be a good idea to run Windows Update.

Many UsrClass. To run Windows Update, please follow these easy steps:. If Windows Update failed to resolve the UsrClass. Please note that this final step is recommended for advanced PC users only.