Very unique issue with Extensions and Add-ons!

I have bought Gmod 10 with Half-Life 2:Deathmatch, and also recently downloaded the free version of Portal as well. I quickly learned that Portal is not a game that wants to run on my system from 2005. Gmod worked before the download, and wouldn’t after. I transferred all of my Steam information onto my secondary drive, and uninstalled them on my C drive. The client and all of the game information is now on my E drive, and problems hadn’t occurred until recently.

The main problem is that my Portal game won’t start up, and gives a reference error. This shouldn’t be a problem, because I could just take it out of the extensions and add-ons, right? No! I checked my Extensions and Add-ons, and my HL2:DM apparently no longer exists to Gmod. I looked through my files, and both Gmod and Portal have a “content.gcf” file, but the one that is missing. This wouldn’t be a problem, except because it’s running off of the non-working Portal, it gives the same error!

My question is this: What on Earth can I do to re-add it back into my Extensions list? And yes, I have played it. 8 hours of it, to tell the truth. And my Gmod worked before all of this, too.

Note: My system information is:Summary
Operating System
MS Windows XP Home 32-bit SP3
CPU
Intel Celeron
Northwood 0.13um Technology
RAM
512MB DDR @ 132MHz (2-2-2-6)
Motherboard
Dell Computer Corp. 0F5949

(Microprocessor)
Graphics
LCD1970NX @ 1280x1024
Intel® 82845G/GL/GE/PE/GV

Graphics Controller
Hard Drives
195GB Seagate ST3200827A (ATA)

36 °C
39.1GB Western Digital WDC

WD400BB-75JHC0 (IDE) 33 °C
Optical Drives
TigerJet CD-ROM USB Device
HL-DT-ST CD-RW GCE-8483B
HP DVD Writer 840b
Audio
USB Audio Device
Operating System
MS Windows XP Home 32-bit SP3
Installation Date: 10 May 2005, 17:21
Serial Number: RCBF6-6KDMK-GD6GR-K6DP3-4C8MT
CPU
Intel Celeron
Cores 1
Threads 1
Name Intel Celeron
Code Name Northwood
Package Socket 478 mPGA
Technology 0.13um
Specification Intel® Celeron®

CPU 2.40GHz
Family F
Extended Family F
Model 2
Extended Model 2
Stepping 9
Revision D1
Instructions MMX, SSE, SSE2
Bus Speed 99.7 MHz
Rated Bus Speed 398.8 MHz
Stock Core Speed 2400 MHz
Stock Bus Speed 100 MHz
Caches
L1 Data Cache

Size 8 KBytes
L1 trace cache

12 Kuops
L2 Unified Cache

Size 128 KBytes
Core 0
Core Speed

2392.2 MHz
Multiplier x 24.0
Bus Speed

99.7 MHz
Rated Bus Speed

398.8 MHz
Thread

1

APIC ID 0
RAM
Memory slots
Total memory slots 2
Used memory slots 2
Free memory slots 0
Memory
Type DDR
Size 512 MBytes
DRAM Frequency 132.9 MHz
CAS# Latency (CL) 2 clocks
RAS# to CAS# Delay (tRCD) 2

clocks
RAS# Precharge (tRP) 2

clocks
Cycle Time (tRAS) 6 clocks
SPD
Number Of SPD Modules 2
Slot #1
Type DDR
Size 256

MBytes
Manufacturer

MOSEL
Max Bandwidth

PC3200 (200 MHz)
Part Number

V826632K24SCTG-D3
Serial Number

E2513464
Week/year

05 / 05
SPD Ext. EPP
JEDEC

#3

Frequency 200.0 MHz

CAS# Latency 3.0

RAS# To CAS# 3

RAS# Precharge 3

tRAS 8

Voltage 2.500 V
JEDEC

#2

Frequency 166.7 MHz

CAS# Latency 2.5

RAS# To CAS# 3

RAS# Precharge 3

tRAS 7

Voltage 2.500 V
JEDEC

#1

Frequency 133.3 MHz

CAS# Latency 2.0

RAS# To CAS# 2

RAS# Precharge 2

tRAS 6

Voltage 2.500 V
Slot #2
Type DDR
Size 256

MBytes
Manufacturer

MOSEL
Max Bandwidth

PC3200 (200 MHz)
Part Number

V826632K24SCTG-D3
Serial Number

9524080A
Week/year

41 / 05
SPD Ext. EPP
JEDEC

#3

Frequency 200.0 MHz

CAS# Latency 3.0

RAS# To CAS# 3

RAS# Precharge 3

tRAS 8

Voltage 2.500 V
JEDEC

#2

Frequency 166.7 MHz

CAS# Latency 2.5

RAS# To CAS# 3

RAS# Precharge 3

tRAS 7

Voltage 2.500 V
JEDEC

#1

Frequency 133.3 MHz

CAS# Latency 2.0

RAS# To CAS# 2

RAS# Precharge 2

tRAS 6

Voltage 2.500 V
Motherboard
Manufacturer Dell Computer Corp.
Model 0F5949
Chipset Vendor Intel
Chipset Model i845G
Chipset Revision A1
Southbridge Vendor Intel
Southbridge Model 82801DB (ICH4)
Southbridge Revision 01
BIOS
Brand Dell Computer Corporation
Version A05
Date 12/02/2003
Graphics
Monitor
Name LCD1970NX on Intel

82845G/GL/GE/PE/GV Graphics Controller
Current Resolution 1280x1024 pixels
Work Resolution 1280x982 pixels
State enabled, primary, output

devices support
Monitor Width 1280
Monitor Height 1024
Monitor BPP 32 bits per pixel
Monitor Frequency 75 Hz
Device \.\DISPLAY1\Monitor0
Intel® 82845G/GL/GE/PE/GV Graphics

Controller
Memory 64 MB
Memory type 2
Driver version 6.14.10.4342
Hard Drives
ST3200827A
Manufacturer Seagate
Form Factor 3.5"
Interface ATA
Serial Number 5ND3A4HW
Capacity 195GB
Real size 200,049,647,616 bytes
S.M.A.R.T
01 Read Error

Rate 114 (094 worst) Data 0004744571
03 Spin-Up Time

098 (097) Data 0000000000
04 Start/Stop

Count 098 (098) Data 00000008C3
05 Reallocated

Sectors Count 100 (100) Data 0000000000
07 Seek Error

Rate 084 (060) Data 00103C4879
09 Power-On

Hours (POH) 092 (092) Data 0000001D4F
0A Spin Retry

Count 100 (100) Data 0000000000
0C Device Power

Cycle Count 099 (099) Data 00000005F8
BB 100

(100) Data 0000000000
BD High Fly Writes

(WDC) 100 (100) Data 0000000000
BE Temperature

Difference from 100 065 (054) Data 00241E0023
C2 Temperature

035 (046) Data 0000000023
C3 Hardware

ECC Recovered 063 (055) Data 00049DBE83
C5 Current

Pending Sector Count 100 (100) Data 0000000000
C6 Uncorrectable

Sector Count 100 (100) Data 0000000000
C7 UltraDMA CRC

Error Count 200 (200) Data 0000000000
C8 Write Error

Rate / Multi-Zone Error Rate 100 (253) Data 0000000000
CA Data Address

Mark errors 100 (253) Data 0000000000
Temperature

36 °C
Temperature

Range ok (less than 50 °C)
Status Good
Partition 0
Partition ID

Disk #1, Partition #0
Disk Letter E:
File System

NTFS
Volume Serial

Number F055B263
Size 186GB
Used Space

27.3GB (15%)
Free Space

159GB (85%)
WDC WD400BB-75JHC0
Manufacturer Western Digital
Form Factor GB/2.5-inch
Serial Number WD-

WMAMA3440841
Interface IDE
Capacity 39.1GB
Real size 40,000,000,000 bytes
S.M.A.R.T
01 Read Error

Rate 200 (200 worst) Data 0000000000
03 Spin-Up Time

166 (164) Data 0000000A8C
04 Start/Stop

Count 099 (099) Data 0000000790
05 Reallocated

Sectors Count 200 (200) Data 0000000000
07 Seek Error

Rate 200 (200) Data 0000000000
09 Power-On

Hours (POH) 086 (086) Data 00000028E7
0A Spin Retry

Count 100 (100) Data 0000000000
0B Recalibration

Retries 100 (100) Data 0000000000
0C Device Power

Cycle Count 099 (099) Data 0000000778
C2 Temperature

110 (097) Data 0000000021
C4 Reallocation

Event Count 200 (200) Data 0000000000
C5 Current

Pending Sector Count 200 (200) Data 0000000000
C6 Uncorrectable

Sector Count 200 (200) Data 0000000000
C7 UltraDMA CRC

Error Count 200 (200) Data 0000000000
C8 Write Error

Rate / Multi-Zone Error Rate 200 (200) Data 0000000000
Temperature

33 °C
Temperature

Range ok (less than 50 °C)
Status Good
Partition 0
Partition ID

Disk #0, Partition #0
Size 31.3

MB
Partition 1
Partition ID

Disk #0, Partition #1
Disk Letter C:
File System

NTFS
Volume Serial

Number F4469E3D
Size 33.9GB
Used Space

32.8GB (97%)
Free Space

1.07GB (3%)
Optical Drives
TigerJet CD-ROM USB Device
Media Type CD-ROM
Name TigerJet CD-ROM USB

Device
Availability Running/Full

Power
Capabilities Random Access,

Supports Removable Media
Config Manager Error Code Device

is working properly
Config Manager User Config FALSE
Drive G:
Media Loaded FALSE
Status OK
HL-DT-ST CD-RW GCE-8483B
Media Type CD-ROM
Name HL-DT-ST CD-RW GCE-8483B
Availability Running/Full

Power
Capabilities Random Access,

Supports Removable Media
Config Manager Error Code Device

is working properly
Config Manager User Config FALSE
Drive D:
Media Loaded FALSE
SCSI Bus 0
SCSI Logical Unit 0
SCSI Port 1
SCSI Target Id 0
Status OK
HP DVD Writer 840b
Media Type CD-ROM
Name HP DVD Writer 840b
Availability Running/Full

Power
Capabilities Random Access,

Supports Removable Media
Config Manager Error Code Device

is working properly
Config Manager User Config FALSE
Drive F:
Media Loaded FALSE
SCSI Bus 0
SCSI Logical Unit 0
SCSI Port 1
SCSI Target Id 1
Status OK
Audio
Sound Cards
USB Audio Device
Unimodem Half-Duplex Audio Device
SoundMAX Integrated Digital Audio
Playback Devices
SoundMAX Digital Audio
USB Internet Phone by TigerJet
Recording Devices
SoundMAX Digital Audio
USB Internet Phone by TigerJet
Peripherals
Standard 101/102-Key or Microsoft Natural PS/2

Keyboard
Device Kind Keyboard
Device Name Standard

101/102-Key or Microsoft Natural PS/2 Keyboard
Location plugged into keyboard port
Driver
Date 7-1-

2001
Version

5.1.2600.2180
File

C:\WINDOWS\system32\DRIVERS\i8042prt.sys
File

C:\WINDOWS\system32\DRIVERS\kbdclass.sys
Microsoft USB Wireless Mouse (IntelliPoint)
Device Kind Mouse
Device Name Microsoft USB

Wireless Mouse (IntelliPoint)
Vendor Microsoft
Location Location 0
Driver
Date 6-10-

2005
Version

5.40.633.0
File

C:\WINDOWS\system32\DRIVERS\mouhid.sys
File

C:\WINDOWS\system32\DRIVERS\mouclass.sys
File

C:\WINDOWS\system32\DRIVERS\point32.sys
File

C:\WINDOWS\system32\ipcoin6.dll
USB Audio Device
Device Kind Audio device
Device Name USB Audio Device
Vendor Unknown
Location USB Internet Phone by

TigerJet (Location 0)
Driver
Date 7-1-

2001
Version

5.1.2535.0
File

C:\WINDOWS\system32\drivers\USBAUDIO.sys
File

C:\WINDOWS\system32\ksuser.dll
File

C:\WINDOWS\system32\ksproxy.ax
File

C:\WINDOWS\system32\drivers\ks.sys
File

C:\WINDOWS\system32\drivers\drmk.sys
File

C:\WINDOWS\system32\drivers\portcls.sys
File

C:\WINDOWS\system32\drivers\stream.sys
File

C:\WINDOWS\system32\wdmaud.drv
Disk drive
Device Kind USB storage
Device Name Disk drive
Vendor TIGERJET
Comment TigerJet HardDisk

USB Device
Location Location 0
Driver
Date 7-1-

2001
Version

5.1.2535.0
File

C:\WINDOWS\system32\DRIVERS\disk.sys
Network
You are connected to the internet
Connected through Westell USB Network

Interface - Packet Scheduler Miniport
IP Address 192.168.1.46
External IP Address 75.121.234.88
Adapter Type Ethernet
WinInet Info
LAN Connection
Local system uses a local area

network to connect to the Internet
Local system has RAS to connect to

the Internet
Wi-Fi Info
Wi-Fi not enabled
WinHTTPInfo
WinHTTPSessionProxyType No

proxy
Session Proxy
Session Proxy Bypass
Connect Retries 5
Connect Timeout 60000
HTTP Version HTTP 1.1
Max Connects Per 1.0 Servers INFINITE
Max Connects Per Servers INFINITE
Max HTTP automatic redirects 10
Max HTTP status continue 10
Send Timeout 30000
IEProxy Auto Detect No
IEProxy Auto Config
IEProxy
IEProxy Bypass
Default Proxy Config Access Type

No proxy
Default Config Proxy
Default Config Proxy Bypass

Try reinstalling. What do you mean by ‘free’?

When I say “free,” I meant the free Portal download thing that was on a couple months ago or so. I figure it lacks something, even though I have un-installed and re-installed it multiple times.

How did you play anything with so little RAM… :ohdear:

Try increasing your paging file a bit.

Thanks for reading through that wall of text, but my paging file amount is around 4 gigs.

You’re trying to run garrysmod on an old Dell from 2005. The issue isn’t garrysmod, exensions or addons.

It’s your computer.

Actually, it’s run really well before. If you look at my Steam profile, you’ll see I spent some hours playing it. It worked well up until recently.

When was the last time you played garrysmod without problems?

Let’s see…

…around half of a year. Why? BTW, the reason it’s so long is because I stopped playing for a couple of months, then when I tried, it didn’t work. It’s always giving me some reference issue, even though I’ve uninstalled and reinstalled like 3 times for each game, played Portal and HL2:DM and then Garry’s Mod.

There’s been a lot of changes to garrysmod over the past six months. Your computer can’t run this game anymore I’m afraid.

You shouldent even been able to run garrysmod with that computer since long ago, you was very lucky it worked half a year ago

I just checked. My computer has ALL of the minimum requirements for all 3 games. So it’s not that.